BOSTON (AP) — The Celtics got a historic 51-point performance from Jayson Tatum to blow past the 76ers in Game 7 of their Eastern Conference semifinals matchup to land back in the conference finals for the second straight season. Awaiting them is a rematch with the Miami Heat, who the Celtics bested last season in that round after Jimmy Butler missed a potential game-winning jumper late in Game 7. Boston is hoping to carry the momentum and lessons it learned in its Game 7 blowout win over Philadelphia into what the Celtics think will be another slugfest with Miami. The teams split their four regular-season matchups.