What happened: Philadelphia 76ers star Joel Embiid will return Sunday night in Game 4 against the Boston Celtics, over two weeks after appendicitis surgery. He has missed the series' early games due to the procedure. Reactions shifted from doubtful to officially available.

Why it matters: Embiid's return bolsters a shorthanded Sixers squad that lost multiple games to the Celtics without him. His impact could alter series momentum and betting lines in the playoffs. Health has defined Philly's postseason fortunes.

What to watch: Monitor Embiid's minutes and effectiveness post-surgery. Game 4 outcome may dictate series direction.