Oklahoma became the third top-five team in the BCS rankings to fall on a wild college football weekend as Heisman Trophy candidate Robert Griffin III and Baylor upset the visiting Sooners 45-38 on Saturday.

Griffin, one of the most dynamic dual-threat quarterbacks in college football history, hurt the Sooners (8-2, 5-2 Big 12) primarily with his arm. He threw for a school-record 479 yards and four touchdowns, including the winning 34-yard strike to Terrance Williams with 8 seconds left. Griffin also rushed for a team-high 72 yards.

The Bears (7-3, 4-3) won for the first time in 21 tries against the Sooners and snapped Oklahoma's streak of eight straight wins away from home, including five straight true road games.

Oklahoma used its expanded "Belldozer" package featuring third-string quarterback Blake Bell - a 6-foot-6, 245-pound freshman - to rally from a 14-point deficit in the fourth quarter. Bell scored four touchdowns on five carries.

After Bell's fourth touchdown run pulled the Sooners within 38-37 with 51 seconds left, Oklahoma lined up in the jumbo package to try a 2-point conversion. After a false start penalty, though, the Sooners kicked the extra point, presumably to send it to overtime.

Instead, Griffin led the Bears on a five-play, 80-yard drive in 43 seconds, and the Sooners joined No. 2 Oklahoma State and No. 4 Oregon in suffering losses that likely crush their national title hopes.