Yankees slugger Giancarlo Stanton has returned to New York to undergo medical testing, multiple outlets reported Monday.

Stanton, 35, has yet to take part in spring training activities in Tampa, Fla., as he continues to battle tendinitis in both elbows. The New York Post said Monday that it was unclear whether the medical testing was for an evaluation of his elbows.

On Sunday, manager Aaron Boone told reporters that Stanton was undergoing treatment and "nothing imminent" was on tap for the designated hitter, baseball-wise.

The Yankees haven't been pushing Stanton this spring, giving him time to rest and, hopefully, recover.

The MVP of the 2024 American League Championship Series, Stanton was bothered by deep soreness in his elbows for much of last season. He hit 27 home runs and drove in 72 runs over 114 games in the regular season.

Stanton had seven homers and 16 RBIs in 55 postseason at-bats as the Yankees reached the World Series before losing to the Los Angeles Dodgers in five games. Stanton went deep twice in the Fall Classic to follow up his four-homer showing against the Cleveland Guardians in the ALCS.

Stanton is entering his 16th major league season -- the first eight coming with the Miami Marlins before he was traded to the Yankees prior to the 2018 season. He has 429 homers and 1,103 RBIs along with a .257 average in 1,649 career games.

Stanton is a five-time All-Star and he was the National League MVP in 2017 when he established career highs of 59 homers and 132 RBIs for Miami.

He has three seasons remaining on a 13-year, $325 million deal he signed with the Marlins. The Yankees hold a club option for 2028.