Joel Embiid has made progress in his return from an emergency appendectomy, but was ruled out of Game 3 as the Philadelphia 76ers host the Boston Celtics.

Embiid began ramping up his on-court work this week after also beginning a strength and conditioning program on Monday. Embiid participated in Thursday's practice and also in Friday's shootaround. 

Embiid was not cleared on Friday afternoon after meeting with the Sixers' medical staff. 

"He's just not ready," Nick Nurse said during his pregame availability ahead of Friday's game. "He's lifted some, he's got on court a bit, but we're still at two weeks and a day, I think. So we're just not ready yet."

Embiid averaged 26.9 points and 7.7 rebounds in 38 games this season for the Sixers