The injury occurred halfway through the fourth quarter when McCollum was fouled by Eric Gordon of the Pelicans while grabbing an offensive rebound. McCollum finished the game with seven points and two rebounds in 18 minutes.
The team gave a rough timetable for re-evaluation in four weeks. Similar injuries usually keep players out for 4-to-6 weeks.
McCollum was averaging 5.0 points per game off the bench this season. The second year player from Lehigh missed six weeks in his rookie season with a foot injury.
Comcast SportsNet Northwest has posted video of the play that caused the injury:
Hat tip to GetOver in the Fanshots who posted it first.