With a week to go before the regular season, the Celtics entered Wednesday night's preseason finale hoping for health above all else.

That hope was extinguished midway through the first quarter, when Jaylen Brown grabbed at the back of his left leg and checked out of the game shortly thereafter. Brown headed straight to the locker room, and after a lengthy wait, the team announced that he was doubtful to return due to left hamstring tightness.

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While Brown did not return to the game -- a surprisingly thrilling 110-108 win over the Raptors -- head coach Joe Mazzulla expressed confidence that it won't be a serious situation for his star.

"I think he'll be OK," Mazzulla said. "I just talked to him after [the game],

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