Samaje Perine is ready for his Bedlam debut.

Oklahoma's star freshman rumbled for a major-college record 427 yards rushing in his last outing against Kansas.

There may be more where that came from Saturday, when the 18th-ranked Sooners (8-3, 5-3 Big 12) face rival Oklahoma State (5-6, 3-5). Perine, the Big 12's rushing leader, already has broken Adrian Peterson's school record for rushing touchdowns for a freshman, and he has an outside shot at Peterson's major college record for yards rushing by a freshman in a season.

Oklahoma ran for 510 yards against Iowa State on Nov. 1, 384 against Texas Tech on Nov. 15 and 510 against Kansas on Nov. 22. Meanwhile, the Cowboys have allowed 209 yards rushing per game during their five-game losing streak.