Oklahoma quarterback Baker Mayfield will not start Saturday's game against West Virginia as disciplinary action for his antics at Kansas, coach Lincoln Riley said Monday.

Mayfield, a senior, will also not serve as a captain on Oklahoma's senior day.

"This decision was difficult," said Riley, who became emotional during his weekly press conference, unable to speak for several seconds.

During the third quarter in Lawrence, Mayfield grabbed his crotch and appeared to yell "F--- you!" at the Jayhawks' sideline.