New York Yankees first baseman Anthony Rizzo is expected to miss four to six weeks after tests Monday revealed a fracture to the radial neck of his right arm, a person with knowledge of the situation told ESPN, confirming a report. The injury will not require surgery.

Rizzo suffered the setback Sunday night when he collided with Boston Red Sox pitcher Brennan Bernardino running out a ground ball in the seventh inning. Rizzo landed awkwardly on his right hand and grabbed his wrist area as he tumbled on the ground writhing in pain.

Results of a fluoroscopy at Fenway Park were negative, but the Yankees scheduled more testing for Rizzo on Monday.

“He’s in some pain in that lower arm in a number of places,” Yankees manager Aaron Boone said after Sunday’s game.

Rizzo, 34, has posted his worst numbers as a big leaguer this season, batting .223 with a .630 OPS in 69 games. But he showed flashes during the Yankees’ road trip, tallying 4 hits, 4 walks and a home run in the four games before Sunday.

“The past week or so, the guy has been swinging the bat well and came up with some big hits,” Yankees center fielder Aaron Judge said Sunday. “He had a homer against Kansas City. We’re going to miss him, but the first thing is health.”

Without Rizzo, the Yankees could move DJ LeMahieu from third base to first and have Oswaldo Cabrera play third; the Yankees finished Sunday’s loss with that defensive alignment. Cabrera was the club’s primary third baseman to start the season until LeMahieu came off the injured list in late May.

Infielder Oswald Peraza is an option to take Rizzo’s spot on the active roster. Peraza, 24, has struggled across three minor league levels this season, but he has played in the majors in each of the past two seasons and is already on the 40-man roster.

Ben Rice and TJ Rumfield have both produced in the upper minors this season, but the Yankees would have to make room on the 40-man roster for either one.

Rice, 25, has split his time this season between catcher and first base, batting .275 with a .925 OPS and 15 home runs between Double-A and Triple-A. Rumfield, a first baseman, is slashing .305/.370/.441 with five home runs in 55 games between the two levels.

The update on Rizzo was first reported by The Athletic.

The wait is over: Gerrit Cole will make his season debut for the New York Yankees against the Baltimore Orioles on Wednesday.

The reigning American League Cy Young Award winner, on the injured list to start the season with nerve irritation and edema in his right elbow, will take the mound at Yankee Stadium after three rehab starts between Double-A and Triple-A.

Cole was dominant in his last outing Friday for Triple-A Scranton/Wilkes-Barre, giving up one unearned run on two hits with 10 strikeouts and no walks over 4⅓ innings. In all, Cole allowed two runs (one earned) with 19 strikeouts to zero walks across 12⅓ innings in the three outings.

The Yankees had listed their Wednesday starter as “TBA” through Sunday. Manager Aaron Boone said the club was choosing between Cole and Cody Poteet, noting the team was not obligated to rush into a decision. But Cole was the likely choice all along to face the second-place Orioles, just 1½ games behind the Yankees in the AL East, in a pivotal divisional series.

Cole, 33, will return just over three months after he was shut down during spring training in mid-March. The diagnosis, although not the worst possibility, was considered a staggering blow to a club with World Series aspirations. Outside of Cole, the staff ace, there were questions about the team’s starting pitching.

But the Yankees’ rotation has sparkled in Cole’s absence and had the lowest ERA in the majors entering Monday. The group has been led by Luis Gil, Cole’s replacement and the early American League Rookie of the Year favorite. The 26-year-old right-hander is 9-1 with an AL-best 2.03 ERA in 14 starts despite leading the majors in walks.

Cole will take Poteet’s spot in the rotation. Poteet made three starts for the Yankees in place of Clarke Schmidt, who landed on the injured list with a lat strain. The right-hander surrendered five runs (four earned) over 15 innings in the three outings.

ARLINGTON, Texas — Two-time Cy Young Award winner Jacob deGrom threw off a mound Monday for the first time since reconstructive right elbow surgery just over a year ago, while the next start for Max Scherzer could be his season debut for the Texas Rangers.

DeGrom threw 15 pitches, none of them breaking balls.

“That went really well,” deGrom said. “So one day at a time. I’ve got two more this week, and then just keep moving forward from there.”

DeGrom threw in the bullpen before the Rangers opened a homestand against the New York Mets, his former team, and two days before his 36th birthday. Texas signed deGrom to a $185 million, five-year deal as a free agent before the 2023 season.

The Mets are in effect paying most of Scherzer’s salary after trading the three-time Cy Young Award winner to Texas at the deadline last summer.

Scherzer, who hasn’t pitched for the Rangers since last year’s World Series, threw 4 2/3 innings in a rehab start for Triple-A Round Rock on Saturday night. Texas manager Bruce Bochy said before Monday’s game that he expected Scherzer’s next start to be in the big leagues, but he didn’t say when.

Scherzer has made three rehab starts since back surgery in December. He made his first rehab start April 24, but the next was pushed back to June 9 because of right thumb soreness that team doctors later identified as a nerve issue extending to his right triceps.

Texas made the Scherzer deal last summer after the pitcher agreed to opt in on the final year of his contract for this season at $43.3 million. New York is paying $30.83 million of that to Texas in twice-monthly installments.

DeGrom spent his first nine major league seasons with the Mets but threw only 156 1/3 innings over 26 starts his last two years in New York. He missed the final three months of 2021 with right forearm tightness and a sprained elbow, then didn’t make his first big league start in 2022 until Aug. 2 after being shut down late in spring training because of a stress reaction in his right scapula.

Before deGrom (2-0, 2.67 ERA) got hurt, the Rangers won all six games he started. He last pitched in a game on April 28, 2023, against the New York Yankees when he exited early because of injury concerns for the second time in three starts. The four-time All-Star had surgery on June 12 last year.