Marvin Bagley III hasn't been in the NBA for long, but he's already dealing with his first injury as a pro athlete. 

Bagley, the No. 2 overall pick out of Duke, experienced a tweak in his right hip flexor/groin area during a summer league game against Phoenix while making his debut, the team announced Saturday.

He will undergo an MRI on Monday and will not play Sunday against the Clippers. The forward is also considered doubtful for Tuesday's game against the Grizzlies.

Before suffering the injury, Bagley scored 15 points on 5-of-13 shooting with seven rebounds in 32 minutes on the court Saturday.