Minnesota defenseman Marco Scandella took a slap shot from below the right faceoff circle, hitting Raanta in the forehead area of the helmet. Raanta staggered a bit and fell forward to the ice. He was down for several minutes before getting up and skating off under his own power.
Henrik Lundqvist took over for Raanta.
The Rangers have not provided an update on Raanta's condition.
Raanta allowed one goal on two shots in 6 minutes, 11 seconds.