The Denver Broncos aren't going to be able to win if Tim Tebow keeps turning over the ball (and the defense allows Dexter McCluster to hit wide open holes, but that's another matter). The Broncos could have tied the Kansas City Chiefs at 7-7, but Tim Tebow wound up fumbling the ball:
Tebow took the snap on a 3rd-and-4th play on the Chiefs' 15-yard line. However, Kendrick Lewis wraps up Tebow and puts a hand on the ball, knocking it loose. The Chiefs weren't able to take advantage of the turnover, but the Chiefs were able to blanch the momentum Denver was building.
The Denver offense is still trying to catch up with the Chiefs', but the first half is nearly over.