Photo gallery: Cowboys trip up West Virginia 45-41

Will Grier loses a third-quarter fumble during the 45-41 loss at Oklahoma State. - The Oklahoman

Taylor Cornelius celebrates a fourth-quarter touchdown during Oklahoma State's 45-41 win over West Virginia. - The Oklahoman

Oklahoma State cornerback A.J. Green breaks up a final-play pass intended for David Sills. - The Oklahoman

Oklahoma State linebacker Justin Phillips (19) sacks West Virginia quarterback Will Grier (7) during Saturday's game in Stillwater, Okla. - AP Photo/Brody Schmidt

West Virginia Mountaineers running back Kennedy McKoy (6) runs the ball for a touchdown against the Oklahoma State Cowboys during the first quarter at Boone Pickens Stadium. - Rob Ferguson-USA TODAY Sports

West Virginia Mountaineers running back Kennedy McKoy (6) tackled by Oklahoma State Cowboys defensive end Jordan Brailford (94) during the first quarter at Boone Pickens Stadium. - Rob Ferguson-USA TODAY Sports

Oklahoma State Cowboys head coach Mike Gundy (left) and West Virginia Mountaineers head coach Dana Holgorsen (right) talk before the game at Boone Pickens Stadium. - Rob Ferguson-USA TODAY Sports

West Virginia quarterback Will Grier (7) looks to pass during last season's loss at Oklahoma State. Grier was taken by Carolina in the third round with the 100th overall pick in the NFL Draft. - Rob Ferguson-USA TODAY Sports

Nov 17, 2018; Stillwater, OK, USA; West Virginia Mountaineers defensive lineman Kenny Bigelow Jr. (40) and Oklahoma State Cowboys offensive lineman Marcus Keyes (75) during an altercation during the first half at Boone Pickens Stadium. Mandatory Credit: Rob Ferguson-USA TODAY Sports

Nov 17, 2018; Stillwater, OK, USA; West Virginia Mountaineers running back Kennedy McKoy (6) runs the ball for a touchdown against the Oklahoma State Cowboys during the first half at Boone Pickens Stadium. Mandatory Credit: Rob Ferguson-USA TODAY Sports

West Virginia Mountaineers wide receiver Gary Jennings Jr. (12) makes a catch while defended by Oklahoma State Cowboys safety Jarrick Bernard (24) during the second half at Boone Pickens Stadium. - Rob Ferguson-USA TODAY Sports

Nov 17, 2018; Stillwater, OK, USA; Oklahoma State Cowboys quarterback Taylor Cornelius (14) scores a touchdown run while defended by West Virginia Mountaineers safety Kenny Robinson Jr. (2) during the second half at Boone Pickens Stadium. Mandatory Credit: Rob Ferguson-USA TODAY Sports

Nov 17, 2018; Stillwater, OK, USA; Oklahoma State Cowboys safety Kolby Peel (31) reaches for West Virginia Mountaineers running back Tevin Bush (14) during the first half at Boone Pickens Stadium. Mandatory Credit: Rob Ferguson-USA TODAY Sports

Oklahoma State defensive tackle Trey Carter (99) and offensive lineman Larry Williams (56) watch as teammates Kenneth Edison-McGruder (3), linebacker Justin Phillips (19) and safety Jarrick Bernard (24) stop the advance of West Virginia wide receiver Gary Jennings Jr on Saturday. West Virginia has not scored in the third quarter of a true road game this season. - AP Photo/Brody Schmidt

Oklahoma State wide receiver Tyron Johnson (13) makes a catch for a touchdown while defended by West Virginia defensive back Josh Norwood (4) during the second half at Boone Pickens Stadium. - Rob Ferguson-USA TODAY Sports

Oklahoma State fans rush the field after upsetting the West Virginia Mountaineers at Boone Pickens Stadium. - Rob Ferguson-USA TODAY Sports

West Virginia Mountaineers quarterback Will Grier (7) runs the ball while defended by Oklahoma State Cowboys safety Malcolm Rodriguez (20) during the second half at Boone Pickens Stadium. - Rob Ferguson-USA TODAY Sports

Oklahoma State head coach Mike Gundy, left, shakes the hand of West Virginia head coach Dana Holgorsen following an NCAA college football game in Stillwater, Okla. Oklahoma State defeated West Virginia 45-41. - AP Photo--Brody Schmidt

Oklahoma State wide receiver Tyron Johnson, right, catches a touchdown pass while under pressure from West Virginia cornerback Josh Norwood during the second half of an NCAA college football game in Stillwater, Okla., Saturday, Nov. 17, 2018. Oklahoma State upset West Virginia 45-41.(AP Photo/Brody Schmidt)