Davis suffered the gruesome injury in the third quarter of the Knicks' 89-87 win over the Heat. He slipped and fell to the ground during a fast break opportunity and left the game in obvious pain.
The 33-year-old has dealt with a balky back all season during his one-year stint in New York and has likely played his last game in a Knicks uniform. The Knicks brought Davis on in hopes that he'd blossom back into the player that led the Golden State Warriors to triumph in the early 2000s, but he never really got in great shape.
Davis had issues with herniated discs in his back and saw his golden opportunity to own Madison Square Garden disappear when Jeremy Lin emerged as a worldwide phenomenon. Once Linsanity struck, it became clear that Davis would never be anything more than a backup in New York.
It's doubtful that the Knicks will be able to bring Davis back with their limited salary cap, nor would they likely want to. The priority will be locking up Jeremy Lin and other free agents, including Landry Fields, J.R. Smith and Jared Jeffries, over keeping an older point guard who has already seen his best days.