He is out indefinitely, the team announced, after an MRI revealed the tear on Thursday.
The Knicks said the injury occurred during the third quarter of Wednesday's game against the 76ers.
Here's the video of the play where he injured himself:
As per my previous post about the Knicks lack of bench depth, this story seems right on time.
The Knicks are officially falling apart at the seams, with Amar'e Stoudemire and Kenyon Martin already banged up, Cole Aldrich and Jeremy Tyler will have to play a lot of minutes and that leaves the Knicks even more vulnerable than they already were. This is obviously a freak play and not an indictment on Bargnani's ability to stay healthy, but still, this could not have come at a worse time. The Knicks face stiff competition in the next few weeks and that means more minutes for Carmelo Anthony (who is already leading the league in minutes) and likely more losses for the New York Knicks.