WR Jalen Saunders led the Oklahoma with 164 receiving yards and a touchdown against Oklahoma State. He also scored a key punt return touchdown in OU's 51-48 overtime win. (US Presswire)

In his final game in Norman, Oklahoma quarterback Landry Jones got some help from his friends on Saturday against Oklahoma State.

Brennan Clay ran in an 18-yard touchdown in overtime to give the Sooners a 51-48 win, which kept their chances at a Big 12 title and BCS bowl bid alive. 

Clay was one of several heroes for Oklahoma in a game that had legacy implications for Jones, who broke the Big 12's all-time passing record and made plenty of clutch throws to help Oklahoma on its day-long fight from behind. 

But when the Sooners (9-2, 7-1 Big 12) needed a play in the fourth quarter and overtime, someone other than Jones was the one to step up. First it was Jalen Saunders, who returned a punt 81 yards for the touchdown with OU trailing by eight. Jones tied the game with a two-point conversion pass to Justin Brown. 

Backup QB Blake Bell made the game's next big play, coming on for Jones on 4th-and-1 at the Oklahoma State 4-yard line in the final seconds of regulation, as Bob Stoops choose to run with Bell instead of passing with Jones. The Cowboys nearly had Bell in the backfield, but he willed himself into the end zone to send the game to overtime. 

After Oklahoma's defense held OSU to a field goal to open overtime, Jones handed the ball off to Trey Millard on the first play and then Clay on the next play. Clay ran over OSU safety Daytawion Lowe on his way to the end zone. 

Oklahoma never led until Clay's game-winning touchdown, digging a 17-3 hole early. The Sooners were able to rally to tie the game at 24 at halftime, only to see Oklahoma State (7-4, 5-3) jump back in front on the first play of the third quarter on a Clint Chelf 75-yard touchdown pass to Josh Stewart. 

Playing from behind didn't work out so well earlier in the year when Jones couldn't make enough plays to beat Kansas State or Notre Dame. But the last two weeks, Jones has redeemed himself. He threw the ball 71 times against the Cowboys, completing 46 passes for 500 yards, three touchdowns and an interception. That atoned for a two-interception, zero-touchdown game last year in a 44-10 loss to OSU.

In the last two games, Jones has passed for 1,054 yards, 10 touchdowns and two comebacks. His touchdown to Kenny Still in the final seconds last week beat West Virginia. That throw was his signature moment. 

His teammates made sure he got his signature win on Senior Day. 

If the Sooners can win next week against TCU, they'll guarantee themselves at least a share of the Big 12 title. They'll win it outright and get the Big 12's automatic BCS bid if Texas is able to beat Kansas State.

(For more on the game, check out CBSSports.com's Eye on College Football blog)

For more up-to-the-minute news and analysis from Big 12 bloggers C.J. Moore and Patrick Southern, follow @CBSSportsBig12 on Twitter. You can also follow C.J. (@cjmoore4) and Patrick (@patricksouthern).