BOSTON — Joel Embiid is headed to the NBA All-Star game for the first time, and he celebrated with another impressive performance.

Embiid scored 26 points and matched a career best with 16 rebounds, leading the 76ers to an 89-80 win over the Boston Celtics on Thursday night.

Dario Saric scored 16 for Philadelphia, which won for the sixth time in seven games. T.J. McConnell had 15 points – all in the second half.

Just one week after Boston erased a 22-point deficit on its way to a 114-103 victory over Philadelphia in London, the Sixers led by as many as 21 and turned away one last rally by the Celtics down the stretch.

“We knew that it was going to be the same team. It wasn’t going to be any new plays,” Embiid said. “We were just physical. Last time they played us when they had that comeback, they were more physical than us. So tonight I think we were more physical than them.”

Boston played without All-Star guard Kyrie Irving, who rested a sore left shoulder. Al Horford and Marcus Morris each scored 14 points.

After winning seven in a row, Boston has lost two straight.

“I don’t want to take anything away from Philadelphia,” Boston Coach Brad Stevens said. “They certainly made us look poor. If you’re not going to own your own space, then you’re going to turn the ball over.”

The Celtics had no answer for Embiid, who was 10 for 19 from the floor and 6 of 7 at the foul line. He also had six assists and blocked two shots.

The Sixers forced 19 turnovers and outrebounded the Celtics 41-31 while avoiding a season sweep.

“It’s been a trend for us the last two games. For whatever reason, we’ve been sloppy on offense,” Horford said. “Other teams are putting pressure on us and speeding us up a little bit and we’re not handling it too well.”

Marcus Smart scored 13 and Jaylen Brown had 12 points for Boston.

Embiid scored 10 in the third quarter and McConnell had nine points in the period, helping the Sixers pull away. Jayson Tatum’s 3-pointer with 2:01 remaining trimmed Philadelphia’s lead to 86-79, but Boston’s rally fizzled from there.