Boston Celtics rookie Jaylen Brown is questionable for Thursday night's Game 5 against the Cleveland Cavaliers with a hip pointer, the team announced Wednesday.

Brown is the third Celtics player to deal with a hip injury in the postseason, joining leading scorer Isaiah Thomas, who has been ruled out for the postseason and might require surgery. Avery Bradley has also dealt with hip pointers throughout the postseason, but has managed 36.1 minutes per game in the team's run to the Eastern Conference finals.

If Brown is unable to go, it will be a significant blow to an already depleted Celtics team. Brown has played an integral role for the Celtics and is playing a postseason high 19.3 minutes in the Cleveland series. Most importantly, he has taken on the unenviable responsibility of guarding LeBron James in stretches. He's averaging 4.9 points and 2.3 rebounds this postseason.

The Celtics also announced that Jae Crowder, who fell awkwardly in Game 4, is probable with a left groin strain. Amir Johnson is also probable for Game 5 with a right shoulder sprain.