Bagley suffered the injury during the Pistons’ loss to the Trail Blazers on Monday. He missed the first 13 games of the season with a bone bruise in his knee.
Bagley is averaging 10.1 points and 5.6 rebounds, shooting 54 percent from the field, in 25 games. While he’s never lived up to lofty expectations of being the No. 2 overall pick in 2018, he’s considered an important part of the Pistons’ rebuild.
Detroit has already lost standout second-year guard Cade Cunningham for the season to a leg injury.