Philadelphia 76ers’ star Joel Embiid suffered a right knee injury after a hard fall Monday night, which knocked him out of his team’s 122-114 Game 4 loss at the Washington Wizards.

Sixers coach Doc Rivers said Embiid would have an MRI on Tuesday and was uncertain if he would be able to play in Wednesday’s Game 5 in Philadelphia as the 76ers, up 3-1 in the series, try again to clinch.

Embiid crashed to the floor after he was met in the air at the rim by Wizards center Robin Lopez just over seven minutes into the game.