The Yankees learned on Thursday that Domingo German, the young pitcher who led the team in victories last season, will be suspended until early June under Major League Baseball’s domestic violence policy.

The league announced that German, 27, had accepted an 81-game, unpaid suspension stemming from an incident in September involving German and his girlfriend, with whom he has at least one child, at his residence in Yonkers. No criminal charges were filed against German, who has agreed not to appeal the suspension.

German was placed on administrative leave last Sept. 19 as M.L.B. began an investigation, and he did not appear in any regular season or postseason games for the rest of the year. He was held out of 18 games during the investigation, making him ineligible for the Yankees’ first 63 games this season. The Yankees’ 64th game is scheduled for June 5.

Because he has already missed one postseason for the violation, German will be allowed to participate if the Yankees qualify for the 2020 postseason (though he will not be permitted to play in spring training games).