Embiid is recovering from an April 9 appendectomy, while Oubre is dealing with right adductor soreness after averaging 13.0 points and 6.0 rebounds in the series.
Oubre has played heavy minutes, guarding Celtics stars, but is struggling from three-point range. If he is limited, Justin Edwards and Dominick Barlow could see increased roles in Game 4.
Coach Nick Nurse says Embiid is progressing and Sunday’s shootaround may determine his status. The Sixers trail the Celtics 2-1 in the first-round playoff series and have missed Embiid’s defensive presence.
Can Philadelphia's shallow bench overcome Boston's depth, even with their stars returning?
Is Joel Embiid's rapid return from surgery a reckless gamble for the 76ers' playoff hopes?
How can the 76ers fix a defense that Boston 'totally exposed' in Game 3?
What does Embiid's swift recovery signal about the future of athlete injury treatment?
Will a limited Kelly Oubre Jr. be able to contain Boston's star wings Jayson Tatum and Jaylen Brown?