SAN ANTONIO — Cavs star Donovan Mitchell knew he was going to get ejected. He didn’t care. Shortly after pouring in a left-wing 3-pointer that solidified another 30-point night, with the game already decided, Mitchell strolled to the other end of the court, crouched down in his defensive stance and got decked in the face by San Antonio backup Zach Collins, who blatantly extended his elbow on a moving screen.