Rudy Gay left in the second quarter of the Grizzlies' victory over the 76ers on Tuesday night with a left shoulder injury.
After logging a little over 12 minutes, he did not return.
Gay was fouled by rookie Evan Turner midway through the quarter as he drove across the lane. Memphis called a time-out and he returned to shoot a pair of one-handed free throws.
He made one of two before Mike Conley intentionally committed a foul to get Gay out of the game.