KANSAS CITY, Mo. (AP) Brady Quinn had waited three years for another chance to be a starting quarterback in the NFL. He wasn't going to let a concussion put him back on the sideline.
That's why the Chiefs quarterback admitted Wednesday to attempting to play through his second concussion of the season, which he believes happened when a defender's knee struck the back of his helmet in a game against the Oakland Raiders on Oct. 28.
Quinn remembers having vision problems after the blow, but decided to remain in the game, even though he was dazed enough to put on the wrong helmet on the sideline between possessions.
He never saw the Raiders' Rolando McClain while getting sacked later in the first quarter, perhaps augmenting the severity of the initial concussion, and recalled having "tunnel vision" and being unable to see the Oakland defensive backs when he threw an interception.
It was at that point Quinn was removed from the game.
"That's why I tried to stay in the game, because i...