BLOOMINGTON, Ind. (AP) Indiana forward Collin Hartman injured his left during a non-contact workout.
Coach Tom Crean said Wednesday that the injury was still being evaluated.
Hartman, a 6-foot-7 senior from Indianapolis, has played a key role for the Hoosiers each of the past two seasons, especially on defense.
Last season, he started 24 times in 35 appearances and averaged 5.0 points and 3.1 rebounds on a team that reached the Sweet 16. As a sophomore, Hartman started 12 of 32 games and shot 50 percent from the field and 47.5 percent from 3-point range as he averaged 4.8 points and 3.1 rebounds.
Hartman tore the ACL in his right knee after his freshman season, in 2013-14, but returned to the court at the start of his sophomore year.