Stars forward Tyler Seguin was cut on the back of the leg late in the game Thursday and limped to the locker room after Dallas took a 4-3 win over Tampa Bay.
Seguin appeared to get tangled up with Lightning defenseman Anton Stralman with about 22 seconds left in the game.
Stars coach Lindy Ruff said: "He got cut, so we'll know more tomorrow."
The Stars practice at 11 a.m. Friday in Frisco. They play Saturday night at home against the Islanders.