“When I came out in the second half and started throwing the ball (to warm up), it became really apparent that I wasn't going to be effective,” Brees said.
Brees said he didn't expect the injury to be “a long-term thing," but added, ”it's just a matter of how long it's going to be.
“We couldn’t get anything going in the second half and didn’t get much out of our running game," coach Kyle Shannahan said.
Tight end Josh Hill also left the game with a concussion in the second half.
Cornerback Marshon Lattimore left with an oblique injury, but could be seen standing on the sideline without his helmet in the second half, urging on teammates and even dancing at times.