The Vikings lost four players, including starting cornerback Xavier Rhodes, to injuries during their 31-14 victory over San Diego on Sunday at TCF Bank Stadium.
Rhodes suffered a concussion. He was briefly motionless and face down on the turf in the second quarter after colliding with teammate Andrew Sendejo as Chargers quarterback Philip Rivers hit Keenan Allen on a 34-yard touchdown pass.
Sendejo missed the tackle and slammed into Rhodes, snapping Rhodes' neck back.
"We know we play a dangerous game," Vikings cornerback Captain Munnerlyn said. "At the same time I hope my teammate, my player, is OK. … Hopefully, he'll be back out there when we start practicing again."
Defensive end Justin Trattou suffered a left ankle injury in the first quarter and didn't return. Starting wideout Charles Johnson injured his ribs in the first quarter but quickly returned and took several snaps before sitting the rest of the game. Coach Mike Zimmer said Sendejo hurt a leg in the fourth quarter and was replaced by Robert Blanton.
Rhodes will have to clear the NFL's concussion protocol before he can practice. Left guard Brandon Fusco went through that process last week and was ready to play Sunday.
"Having some key guys like that go down, it's not a good thing," Fusco said.
Rhodes wasn't around the locker room after the game. Trattou was on crutches while Johnson was moving gingerly but said he was "OK."