Cavaliers coach Mike Brown returned to the Cleveland bench for the first time since being fired following the 2009-10 season. Brown coached the Lakers in 2011-12 before being let go five games into last season.
Bucks forward Ersan Ilyasova left the game in the second quarter with a sprained right ankle and was helped to the locker room. He did not return and scored six points in nine minutes.
Ilyasova said X-rays showed no fracture, but he would have more tests Wednesday. He was walking with the aid of a crutch when he emerged from the Bucks' training room.
"I've twisted that ankle before, but never that bad," said Ilyasova, who landed awkwardly after getting tangled up with Cleveland's C.J. Miles under Milwaukee's basket. "It really hurts when I step on it. I'll get a lot of treatment and we'll see, but it's the first game and it's really disappointing."