Kevin Love left the Cavaliers' game against the Boston Celtics on Friday after a collision with Isaiah Thomas and will not return to the game. The injury is a left thigh bruise, according to Cleveland PR.
Thomas ran into Love's left knee and Love immediately went down. After staying down for several minutes, Love limped to the bench and then to the locker room, although he wasn't able to put weight on the leg, per Yahoo's Chris Mannix. He needed assistance as he went back into the tunnel.
Here's video of the play where Love was injured.