Washington Redskins wide receiver Aldrick Robinson and strong safety Brandon Meriweather were injured during an odd pregame collision.

Aldrick Robinson, right, was injured during pregame warmups today in Tampa. (John McDonnell/The Washington Post)

Robinson and Meriweather were in the end zone during warmups and Robinson bent over to pick up a football and as he stood up, Meriweather’s left knee struck the receiver’s head, according to people who were on the field at the time.

Both players initially went down after the collision. Meriweather, who has been sidelined all season with a strained MCL and PCL in the same knee, limped to the locker room. Robinson remained down on the field longer and was tended to by Redskins trainers and Tampa Bay medical staff. Eventually, Robinson was helped up and he walked slowly to the locker room.

There is no word yet on either player’s availability for the game.