Connor Shaw threw for two touchdowns and ran for another score as South Carolina (No. 8 BCS, No. 12 AP) beat Arkansas 38-20 on Saturday.
Arkansas (No. 6 BCS, No. 7 AP) matched a school record with its 11th victory, beating Kansas State (No. 8 BCS, No. 11 AP) by a 29-16 score in the AT&T Cotton Bowl Classic on Friday night.
Tyrann Mathieu returned a punt 92 yards for a score, LSU punished third-ranked Arkansas with 286 yards rushing, and the top-ranked Tigers secured a spot in the SEC championship game with a 41-17 victory Friday.
Dennis Johnson returned a kickoff 96 yards for a touchdown in the final minute of the third quarter, and Arkansas snapped No. 19 Tulsa's unbeaten run with a 30-23 victory Saturday.