NEW YORK (AP) — Yankees ace Gerrit Cole is scheduled to throw off a mound Saturday for the first time since getting injured in spring training.

“Whether that’s a full bullpen or what exactly that looks like, we’ll see,” New York manager Aaron Boone said before Friday night’s game against Detroit. “I think it’s gone well so far, his buildup and checking the boxes and the level of intensity of throwing and things like that. So far, so good. Getting off the mound will obviously be another step.”

The reigning AL Cy Young Award winner has been on the 60-day injured list all season with right elbow inflammation. He’s not expected back until at least June.

Cole has been throwing on flat ground. The 33-year-old right-hander was shut down in March due to nerve irritation and edema in his pitching elbow.

In other injury news, infielder Jon Berti played third base Thursday in a rehab game with Double-A Somerset and went 1 for 4 with a walk and two strikeouts. He was set to go through a workout Friday and potentially come off the injured list Saturday.