Cooper Flagg’s Boston return, ground stop impacts NBA game (Celtics Notebook)

BOSTON — When Cooper Flagg and the Mavericks visited Boston last season, the primary storyline was supposed to be the Maine native’s homecoming. But it was overshadowed by a different subplot: Jayson Tatum’s first

game back. There was a palpable buzz that night as Tatum played for the first time since his Achilles injury.