The New York Yankees’ playoff hopes took a hit Wednesday, when hard-throwing righthander Joba Chamberlain was placed on the 15-day disabled list with right rotator cuff tendinitis.

A published report claims Chamberlain, who was examined by Dr. James Andrews in Pensacola, Florida, was told to rest for a week before beginning a throwing program.

The Bergen Record of Hackensack, New Jersey also reported Andrews looked at the MRI of Chamberlain’s shoulder, which was taken in New York on Tuesday.

Chamberlain underwent the exam one day after leaving his start against Texas with stiffness in the shoulder. He was pulled after only 4 2/3 innings, complaining of a “grabbing” sensation in his deltoid muscle.