Celtics wrap up four-game sweep of Philadelphia

The Boston Celtics are moving on, while the Philadelphia 76ers are heading into an uncertain future.

Kemba Walker scored 32 points and Boston pulled away in fourth quarter to complete a firstround series sweep over Philadelphia 110-106 on Sunday.

Jayson Tatum added 28 points and had a playoff career-high 15 rebounds for Boston, which advances to the Eastern Conference semifinals and a meeting with the winner of the firstround matchup between Toronto and Brooklyn.

Boston's win marks the first sweep in 15 playoff series meetings between the teams. It also is the third straight season that Philadelphia has failed to advance past the second round.

MAVERICKS: The Dallas Mavericks were without forward/center Kristaps Porzingis for Game 4 against the Los Angeles Clippers because he has right knee soreness.

The last-minute scratch occurred after the Mavericks learned that guard Luka

Doncic would play Sunday despite a left ankle sprain. It wasn't the same knee that sidelined Porzingis for the 2018-19 season. Porzingis is averaging 23.7 points and 8.7 rebounds in the Western Conference firstround series. He is coming off a Game 3 performance in which he had 34 points and 13 rebounds. It's the first time a Dallas player has scored 30 or more points and grabbed 10 or more rebounds since Dirk Nowitzki in the 2011 NBA Finals.

ETC: Orlando Magic forward James Ennis and Milwaukee Bucks forward Marvin Williams were fined $15,000 each by the NBA on Sunday for a fight that led to their ejections from Game 3 of their teams' first-round playoff series.

Ennis and Williams had been competing for rebounding position midway through the second quarter of the Bucks' 121-107 victory Saturday. When they headed back up the floor, Ennis shoved Williams, and Williams shoved Ennis back.

As the two players were separated, Williams grabbed Ennis' jersey. Ennis appeared to throw a fist in an attempt to free his jersey.