Boston Celtics fans held their collective breath Wednesday night when Jaylen Brown hobbled off the TD Garden floor grabbing his left hamstring .

But it appears Brown avoided serious injury.

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Celtics head coach Joe Mazzulla told reporters Friday that Brown is considered "day-to-day" with his left hamstring injury, adding that All-Star wing was able to participate in everything but the live portion of Friday's practice.

Whether Brown will suit up for Boston's regular-season opener next Wednesday remains to be seen -- Mazzulla said they haven't discussed his availability for that game yet -- but it's a good sign that Brown at least was on the court Friday going through basketball activities.

Brown, who underwent m

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