Simmonds hit Ennis into the boards from behind; Ennis did not return.
Coach Ron Rolston said "Tyler Ennis is doing okay, just has a nice 'zipper' on his head from the stitches," the Sabres tweeted after the game. Monitor Ennis' availability for tomorrow's game vs. the Rangers.
Ennis has been sidelined for 20 of the Sabres 35 games this season. When healthy, he's been somewhat productive with three goals and five points. Expect him to get another chance on a scoring line when he finally gets back.