reported by ESPN this morning. 

Article here on Rocky Mountain News

What do think?  Excuse for his poor performances recently or maybe this is a serious injury which might require surgery?

I think this is a good opportunity for Coach Karl to mix up his lineup and see how well the chemistry would work out.  This would also be a good time to plug JR into the starting lineup to fill in on some of Melo's minutes and allow Balkman to absorb some quality minutes of his own.  This might hurt the Nugs a bit since there might not be a true scorer off the bench but Kleiza has been playing well lately. 

Starting lineup: Nene - Kmart - Balkman - JR - Chauncey ?

Jones off the bench for defense with Kleiza for offense w/ the other role players filling in (Carter, Anderson, and maybe even Chucky)