LAKE BUENA VISTA, Fla. (AP) Jayson Tatum had career playoff highs of 32 points and 13 rebounds, and the Boston Celtics beat the Philadelphia 76ers 109-101 on Monday in Game 1 of their first-round Eastern Conference playoff series.

”Offensively, it doesn’t feel like he’s got 32 at the end of the night,” Celtics coach Brad Stevens said. ”He just plays the game within himself. He did a lot of good things tonight.”

Jaylen Brown scored 15 of his 29 points in the fourth quarter.

”Jaylen Brown in the last period was exceptional,” 76ers coach Brett Brown said. ”It’s true that Jayson Tatum to start was excellent. You have to give them credit for how good they are at creating their own shot. I hope that we can do a better job of defending them in some of the schemes that we’re trying to execute.”

Kemba Walker added 19 points for the Celtics.

Joel