Momentum swing goes to Colts

Posted by ESPN.com's Bill Williamson

SAN DIEGO -- We just had our first major turning point.

Indianapolis just marched down the field 66 yards to take a 17-10 lead over the Chargers. The Chargers were game, making the Colts score on fourth down and goal from the 1. The set of downs started at the 1.

The Colts ate 7:10 off the clock and took advantage of a turnover by San Diego quarterback Philip Rivers. Rivers had the ball stripped from him by Colts defensive lineman Robert Mathis. Colts defensive lineman Raheem Brock recovered the ball and brought it to the 34-yard line. The Chargers were at the Colts' 12-yard line and poised to take the lead at the time of the turnover.

If Indianapolis wins this game, the Rivers' fumble and ensuing Colts drive will be long remembered in what is a must win for San Diego.

Colts quarterback Peyton Manning has been efficient, completing 24 of 30 pass attempts for 189 yards.