From 40/70 to 40/30? Ronald Acuna Jr. says he’ll be more careful on the basepaths this season — but no one believes him
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Alden Gonzalez
NORTH PORT, Fla. — Ronald Acuña Jr. met with the Atlanta Braves’ medical staff on the afternoon of May 26 and burst into tears when he was told he had suffered a complete tear of the ACL in his left knee. But by the time his Venezuela-based trainer, Juan Aular, heard from him later that night, Acuña was composed. He had accepted his fate, taken comfort in knowing precisely what to expect and was convinced a better version of himself was waiting on the other side. “We’re gonna do this again,” Acuña told Aular, the man who guided him through the torn ACL on his right knee less than three years earlier. “We’re gonna win MVP again.”
Said Aular: “I got goosebumps.”
Acuña tore his ACL for the first time in 2021, so when Aular saw the clip of him crumbling to the ground last year in Pittsburgh, he worried that the thought of another arduous rehab might crush the player. That initial phone call provided encouragement. And as they began to train together again this winter, Aular noticed a vastly different Acuña from the last rehab. He was more mature, more focused, but he was also grappling with his identity like never before. Acuña initially declared he would no longer steal bases, and Aular spent the better part of 10 weeks convincing him he didn’t have to take it that far.
They worked on stabilization and changing direction, but also on shaping mindset. Changing his style of play was unnecessary, Aular repeatedly told Acuña. Toning down his level of intensity might actually be dangerous. He simply needed to pick his spots. The first ACL tear happened while Acuña sprinted toward the warning track and attempted to make a leaping catch near the fence. But the second was the result of unnecessarily forcing action, attempting to steal third base in the first inning of an early-season game, then hurting himself while changing direction and retreating to second.
“He needs to learn how to play to the situation in the game,” Aular said in Spanish. “That is what’s key for Ronald.”
Acuña, 27, has played seven seasons in the major leagues but has only been fully healthy for two of them. In the first, 2019, he hit 41 homers, stole 37 bases, posted an .883 OPS and finished fifth in National League MVP voting as a 21-year-old. In his second, 2023, he put together the first 40/70 season in major league history and was a unanimous choice for MVP.
Acuña emerged from that year looking like the best, most electrifying player in the sport — outside of Shohei Ohtani, perhaps — but there’s no telling what he’ll look like coming off a second major knee operation. Acuña believes the combination of good health and more seasoning will make for “an even better player than I was in 2023.” He’s also striving to be slightly different.
“I’d rather steal 30 and play the whole season as opposed to trying to steal 70, injuring myself and missing the whole year,” Acuña said in Spanish.
But striking the proper balance between aggression and control can often be difficult on players, and Acuña’s attempt seems especially delicate. What the Braves want most is to have him healthy, but they also know the best version of him plays with a hint of reckless abandon. They don’t want to lose Acuña, but they also don’t want him to lose himself.
They’re hoping time will help.
The Braves haven’t announced a return date for Acuña, but if all goes well, he is expected to rejoin their lineup at some point in May. By then, his rehab will have lasted about 12 months, two more than the last time. His return won’t come with any artificial restraints, either. He’ll play his customary position of right field when he starts, as opposed to getting rest days at designated hitter, and will maintain a green light on the bases. Any limits will be self-imposed.
“We’re gonna make sure when he’s back, he’s full go, and that he can be himself and play the game he plays,” Braves general manager Alex Anthopoulos said. “He’s very competitive, he’s a tremendous base-stealer, and we’re not gonna have any restrictions on him at all.”
Anthopoulos has heard talk about Acuña’s desire to be more cautious on the bases, though he hasn’t heard that from Acuña himself.
His response: “I’ll believe it when I see it.
“And I don’t mean that in a bad way,” Anthopoulos added. “He’s just such a good base-stealer. From a medical standpoint, if he’s cleared and he’s fine, I think he’ll find a sweet spot that makes sense for him. But we haven’t told him anything specifically. Once he’s back, the plan is that he’s back with no restrictions.”
Anthopoulos noticed Acuña being more “apprehensive and tentative” in the outfield when he returned from a nine-and-a-half-month rehab in 2022. There was fear of a repeat incident, but Acuña also hadn’t spent enough time strengthening his lower half. Intermittent off days were needed to combat continual discomfort. Acuña didn’t feel as if he had a strong enough base, and his numbers — a .764 OPS and 15 homers while being caught stealing an NL-worst 11 times in 119 games — showed it.
That shouldn’t be the case this time.
Said Aular: “He’s much stronger now.”
Acuña spent June, July, August and most of September navigating through the initial stages of his rehab at Elite OrthoSport, the Los Angeles-based training facility recommended by his surgeon, Dr. Neal ElAttrache. Aular then trained Acuña in his hometown of La Sabana from the middle of November until the end of January. The Braves’ training staff sent a detailed plan, and the two followed it six days a week, in five-hour sessions, taking off only on Christmas Day and New Year’s Eve.
By January, Acuña said he’d started to feel like himself again. Once spring training began, he dazzled teammates continually with prodigious home runs during batting practice. At times it seemed as if he never left.
“He just looks like himself,” Braves center fielder Michael Harris II said. “Still having fun, still being a goofball, still hitting balls over the scoreboard.”
Acuña is a naturally gifted runner, having starred as a 400-meter sprinter during his early teenage years. As he rose through the Braves’ system, he racked up 82 stolen bases in 265 minor league games. He followed with 196 steals in the majors from 2018 to 2024 — second-most in the sport despite missing 30% of the games in that stretch. Stealing bases has always been a major part of Acuña’s identity. Few seem convinced he will let up, even if just a little.
“I don’t think he’ll ever give it up,” Braves first baseman Matt Olson said with a laugh. “It’s the player he is. Yeah, you can choose when you run and stuff, but I bet once he gets back out there, he gets his legs under him, back into playing speed, he’s gonna be the same ol’ Ronald.”
The Braves had their string of six consecutive division titles snapped last season, winning 89 games and just barely sneaking into the playoffs. The New York Mets have since added Juan Soto, and the Philadelphia Phillies continue to be a force, but the Braves will be getting their two best players back: Spencer Strider, who succumbed to elbow surgery after only two starts last spring, should return to the top of the rotation before the end of April; Acuña will return to the top of the lineup shortly thereafter.
Acuña won’t play in any Grapefruit League games, but he has been taking at-bats against Braves pitchers to hone in on his timing. Soon, he’ll be cleared for cutting drills. A rehab assignment will soon follow. The reality of playing actual baseball games again has noticeably lifted his spirits.
“You appreciate things more when you have something like that happen,” Braves manager Brian Snitker said. “You realize how blessed you are to have this opportunity to play this game.”
Asked what he learned having gone through this process before, Acuña said, “Patience. Not getting too anxious.”
He hopes he’ll be better for it.
“I know the type of player I can be,” Acuña said. “I still don’t feel like I’ve gotten to, like, my prime-prime. The most important thing is health.”
The 2025 MLB All-Star Home Run Derby is fast approaching — and the field is set.
Braves hometown hero Ronald Acuna Jr. became the first player to commit to the event, which will be held at Truist Park in Atlanta on July 14 (8 p.m. ET on ESPN). He was followed by MLB home run leader Cal Raleigh of the Seattle Mariners, James Wood of the Washington Nationals, Byron Buxton of the Minnesota Twins, Oneil Cruz of the Pittsburgh Pirates, Junior Caminero of the Tampa Bay Rays, Brent Rooker of the Athletics and Jazz Chisholm Jr. of the New York Yankees.
On Friday, however, Acuna was replaced by teammate Matt Olson.
With all the entrants announced, let’s break down their chances at taking home this year’s Derby prize.
Full All-Star Game coverage: How to watch, schedule, rosters, more
2025 home runs: 17 | Longest: 434 feet
Why he could win: Olson is a late replacement for Acuna as the home team’s representative at this year’s Derby. Apart from being the Braves’ first baseman, however, Olson also was born in Atlanta and grew up a Braves fan, giving him some extra motivation. The left-handed slugger led the majors in home runs in 2023 — his 54 round-trippers that season also set a franchise record — and he remains among the best in the game when it comes to exit velo and hard-hit rate.
Why he might not: The home-field advantage can also be a detriment if a player gets too hyped up in the first round. See Julio Rodriguez in Seattle in 2023, when he had a monster first round, with 41 home runs, but then tired out in the second round.
2025 home runs: 36 | Longest: 440 feet
Why he could win: It’s the season of Cal! The Mariners’ catcher is having one of the greatest slugging first halves in MLB history, as he’s been crushing mistakes all season . His easy raw power might be tailor-made for the Derby — he ranks in the 87th percentile in average exit velocity and delivers the ball, on average, at the optimal home run launch angle of 23 degrees. His calm demeanor might also be perfect for the contest as he won’t get too amped up.
Why he might not: He’s a catcher — and one who has carried a heavy workload, playing in all but one game this season. This contest is as much about stamina as anything, and whether Raleigh can carry his power through three rounds would be a concern. No catcher has ever won the Derby, with only Ivan Rodriguez back in 2005 even reaching the finals.
2025 home runs: 24 | Longest: 451 feet
Why he could win: He’s big, he’s strong, he’s young, he’s awesome, he might or might not be able to leap tall buildings in a single bound. This is the perfect opportunity for Wood to show his talent on the national stage, and he wouldn’t be the first young player to star in the Derby. He ranks in the 97th percentile in average exit velocity and 99th percentile in hard-hit rate, so he can still muscle the ball out in BP even if he slightly mishits it. His long arms might be viewed as a detriment, but remember the similarly tall Aaron Judge won in 2017.
Why he might not: His natural swing isn’t a pure uppercut — he has a pretty low average launch angle of just 6.2 degrees — so we’ll see how that plays in a rapid-fire session. In real games, his power is primarily to the opposite field, but in a Home Run Derby you can get more cheapies pulling the ball down the line.
2025 home runs: 20 | Longest: 479 feet
Why he could win: Buxton’s raw power remains as impressive as nearly any hitter in the game. He crushed a 479-foot home run earlier this season and has four others of at least 425 feet. Indeed, his “no doubter” percentage — home runs that would be out of all 30 parks based on distance — is 75%, the highest in the majors among players with more than a dozen home runs. His bat speed ranks in the 89th percentile. In other words, two tools that could translate to a BP lightning show.
Why he might not: Buxton is 31 and the Home Run Derby feels a little more like a younger man’s competition. Teoscar Hernandez did win last year at age 31, but before that, the last winner older than 29 was David Ortiz in 2010, and that was under much different rules than are used now.
2025 home runs: 16 | Longest: 463 feet
Why he could win: If you drew up a short list of players everyone wants to see in the Home Run Derby, Cruz would be near the top. He has the hardest-hit ball of the 2025 season, and the hardest ever tracked by Statcast, a 432-foot missile of a home run with an exit velocity of 122.9 mph. He also crushed a 463-foot home run in Anaheim that soared way beyond the trees in center field. With his elite bat speed — 100th percentile — Cruz has the ability to awe the crowd with a potentially all-time performance.
Why he might not: Like all first-time contestants, can he stay within himself and not get too caught up in the moment? He has a long swing, which will result in some huge blasts, but might not be the most efficient for a contest like this one, where the more swings a hitter can get in before the clock expires, the better.
2025 home runs: 23 | Longest: 425 feet
Why he could win: Although Caminero was one of the most hyped prospects entering 2024, everyone kind of forgot about him heading into this season since he didn’t immediately rip apart the majors as a rookie. In his first full season, however, he has showed off his big-time raw power — giving him a chance to become just the third player to reach 40 home runs in his age-21 season. He has perhaps the quickest bat in the majors, ranking in the 100th percentile in bat speed, and his top exit velocity ranks in the top 15. That could translate to a barrage of home runs.
Why he might not: In game action, Caminero does hit the ball on the ground quite often — in fact, he’s on pace to break Jim Rice’s record for double plays grounded into in a season. If he gets out of rhythm, that could lead to a lot of low line drives during the Derby instead of fly balls that clear the fences.
2025 home runs: 19 | Longest: 440 feet
Why he could win: The Athletics slugger has been one of the top power hitters in the majors for three seasons now and is on his way to a third straight 30-homer season. Rooker has plus bat speed and raw power, but his biggest strength is an optimal average launch angle (19 degrees in 2024, 15 degrees this season) that translates to home runs in game action. That natural swing could be picture perfect for the Home Run Derby. He also wasn’t shy about saying he wanted to participate — and maybe that bodes well for his chances.
Why he might not: Rooker might not have quite the same raw power as some of the other competitors, as he has just one home run longer than 425 feet in 2025. But that’s a little nitpicky, as 11 of his home runs have still gone 400-plus feet. He competed in the college home run derby in Omaha while at Mississippi State in 2016 and finished fourth.
2025 home runs: 17 | Longest: 442 feet
Why he could win: Chisholm might not be the most obvious name to participate, given his career high of 24 home runs, but he has belted 17 already in 2025 in his first 61 games after missing some time with an injury. He ranks among the MLB leaders in a couple of home run-related categories, ranking in the 96th percentile in expected slugging percentage and 98th percentile in barrel rate. His raw power might not match that of the other participants, but he’s a dead-pull hitter who has increased his launch angle this season, which might translate well to the Derby, even if he won’t be the guy hitting the longest home runs.
Why he might not: Most of the guys who have won this have been big, powerful sluggers. Chisholm is listed at 5-foot-11, 184 pounds, and you have to go back to Miguel Tejada in 2004 to find the last player under 6 foot to win.
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