The Rangers defeated the Penguins 2–1 in overtime to advance past Pittsburgh in five games, but Zuccarello was limited to 4:56 on the ice after taking a slapshot from teammate Ryan McDonagh to the head in the first period.
After the puck struck his helmet, Zuccarello held his head and immediately skated over to the Rangers' bench as play continued before heading to the locker room.
The Rangers have not specified the nature of the injury beyond calling it an "upper body injury."
Over the Rangers' five playoff games, Zuccarello has recorded two assists and 13 shots on goal over 14:35 on the ice.
- Mike Fiammetta