"Jay Cutler vs. Philip Rivers is one of the oddest quarterback rivalries in NFL history. It's rooted in each other's personality quirks — Rivers' brashness vs. Cutler's .?.?. Cutler-ness, for lack of a better term — rather than a history of last-minute heroics to win classic games.
It began late in the 2007 season, when Rivers and the Chargers whipped Cutler and the Broncos 23-3, and TV cameras caught Rivers and teammates taunting Cutler after his last incomplete pass. The Chargers said it was in response to Cutler trash-talking during the game. Cutler was miffed nonetheless, and the battle was on. "