Cook was injured on the first play of the Vikings’ second drive after halftime. Upon receiving a handoff at the 8:56 mark, Seattle defensive end Rasheem Green punched the ball free from Cook’s arm, forcing a fumble. Cook was tripped up and fell to the ground, where he remained for several minutes and looked to be in apparent pain while being tended to by athletic trainers on the field.
Vikings receiver Stefon Diggs was also injured on the play but was able to return to the game on Minnesota’s following drive. Cook went straight back to the locker room but later returned to the sideline.
Cook, the Vikings’ leading rusher, had nine carries for 29 yards and a touchdown along with three receptions for 35 yards.
Minnesota was already dealing with the absence of wide receiver Adam Thielen, who was ruled out Sunday with a lingering hamstring injury. Left tackle Riley Reiff was ruled out late in the third quarter with a concussion.
The Vikings lost 37-30 and are now 8-4 on the season.