Allen was making a cut toward the sideline on a passing route when he went down. He ripped off his helmet as trainers began tending to him, and was helped into the back of a cart and taken off the field.
There was no immediate word on the extent of the injury. Allen, who missed the last eight games a year ago with a lacerated kidney, had six catches for 63 yards before he was hurt. If serious, it would obviously be huge blow to the Chargers offense as well as QB Philip Rivers. We'll continue to follow.