New York Yankees left-hander CC Sabathia experienced swelling in his right knee after his latest rehab work on Wednesday and likely will be shut down for a while.

The big left-hander is scheduled for an MRI to assess the knee, manager Joe Girardi said before Thursday night's Yankees-Minnesota Twins game in Minneapolis.

The 33-year-old Sabathis has not pitched in a major league game since May 10 because of degenerative changes in the knee. He underwent a stem cell injection to aid his recovery.

A midseason return that the Yankees had hoped would happen appears to be doubt now.

Before the injury, Sabathia pitched in eight games and was 3-4 with a 5.28 ERA.

The veteran has a career record of 208-119 with a 3.60 ERA. He is in his sixth year with the Yankees after spending the first seven years of his career with the Cleveland Indians and one with the Milwaukee Bucks before moving to the Yankees in 2009.