Joakim Noah left Monday's game versus Philadelphia with knee soreness and will not return, Nick Friedell of ESPNChicago.com reports.

Noah exited Monday's game against the 76ers with left knee soreness and will not return, Nick Friedell of ESPN Chicago reports.

Analysis:

Noah was originally slated to get the start Monday, but was replaced at the last minute by Nikola Mirotic. The late switch may have been due to the discomfort in Noah's left knee, which is the same knee that required surgery in the summer of 2014. With Noah being ruled out for the rest of the game so quickly, this may be an injury to monitor heading into the Bulls' next game Friday against the Hornets.