The San Antonio Spurs fear Tony Parker could have a torn quadriceps tendon, which would mean season-ending surgery for the point guard, a source told ESPN's Michael C. Wright on Thursday.
Parker, 34, had an MRI after suffering the injury during the Spurs' 121-96 victory over the Houston Rockets on Wednesday night.
With 8:43 left in the fourth quarter, Parker immediately clutched at his left knee after a driving floater over Patrick Beverley and collapsed to the court, where he lay motionless for several minutes.