The San Francisco 49ers had just completed a 22-yard pass, but the play came at a considerable cost for Frank Gore.
The running back sustained a concussion while executing a block against Seattle Seahawks linebacker Bobby Wagner.
Gore laid on his back after the play, initially unable to get up. Several teammates raced to his side before Gore left the field without assistance.
It would not take long for the gravity of the situation to register for the veteran, who at the time in 2014 was in his 10th season.