Fantasy owners that waited all year for Yankees' young sensation Joba Chamberlain to get into the rotation and become the man have now had their bubble bursted as the right hander is headed to the disable list due to rotator cuff tendinitis in his pitching shoulder. He is the fifth Yankees' starter to hit the DL this season.

Best case scenario is that the 23-year old will be in action in two weeks, but it could be much longer than that.  Chamberlain was diagnosed after visiting Dr.James AndrewsWednesday in Pensacola, Fla. The trip followed two exams by doctors in New York and an MRI Tuesday in New York.

Chamberlain will rest his arm for "approximately a week," then begin a throwing program "shortly thereafter," according to Yankees spokesman Jason Zillo. Assuming Chamberlain begins throwing in a week, the earliest he would likely return to the rotation would be the weekend series in Baltimore Aug. 22-24, meaning he will miss a minimum of three starts in the best-case scenario.

"You can't sit here and hang your head about it," Derek Jeter told the New York Daily News. "Hopefully it's not something that goes for an extended period of time, but we have to play well whether he's pitching or he's not pitching."

Ian Kennedy is likely to get called up this weekend and fill the void in the Yankees' rotation.  Kennedy has been pitching well at Triple-A, going 3-0 with a 1.33 ERA in his last four starts for Scranton.

With only four to six weeks left in most fantasy baseball leagues' regular season, Chamberlain's injury is bad news for owners that in the hunt for their playoffs.