Wild wins are becoming routine for Tim Tebow and the Denver Broncos, who flail away through most of four quarters before coming through in the clutch. Matt Prater's 51-yard field goal 6½ minutes into overtime gave the Broncos a 13-10 victory over the stunned Chicago Bears on Sunday. Prater's 59-yarder with 3 seconds left in regulation tied the score after Tebow led another rally.