Michael Carter-Williams, Philadelphia's rookie point guard, was diagnosed with an infection in his right knee, 76ers coach Brett Brown announced on Saturday.
Carter-Williams has spent three nights at the UPenn Hospital undergoing treatment from team physician Brian Sennett and infectious disease specialist Neil Fishman.
He is officially listed as day-to-day, and he believes he got the infection after knocking knees with a Pistons player in Philadelphia's 115-100 loss in Detroit.
The 76ers (7-13) have lost five of their last six and nine of their last 11 but are only 1.5 games behind Boston in the Atlantic Division. In their last win, a 126-125 double-overtime win over Orlando on Tuesday, Carter-Williams had his first career triple-double but complained of knee soreness.