Jaylen Brown left the Boston Celtics' 110-108 preseason with over the Toronto Raptors with hamstring tightness.

Celtics head coach Joe Mazzulla said that he didn't think the injury was serious. 

“I think he’ll be OK,” Mazzulla said. “Talked to him after (the game). He said he would be fine, but I didn’t get a full update.”

Brown suffered the injury in the first quarter and did not return to the game.

The Celtics open their season next Wednesday against the Sixers.