Simms did not play in Westchester's loss to Delaware on Saturday due to a concussion.
Simms had started for Westchester in each of his previous 15 games with the club, and he is averaging 11.7 points, 6.0 boards, 1.9 assists and 1.3 three-pointers during the G League regular season. It's unclear how long the issue will keep him out of action.