New York Yankees reliever Joba Chamberlain has thrown off a full mound for the first time in eight months after elbow ligament replacement surgery.
Chamberlain made 16 throws during the session on Tuesday, and said "everything went great."
The right-hander started working off a half mound as part of a rehabilitation program on Feb. 3.
Chamberlain went 2-0 with a 2.83 ERA in 27 relief appearances last season before surgery on June 16. He is expected to rejoin the Yankees this season, possibly before the All-Star break.