Cale Gundy delivered a surprising resignation on Sunday night as the long-time Oklahoma assistant stepped down, and the move was accepted by Brent Venables.

As a player and assistant, Gundy spent the last 24 seasons with the Sooners program.

The resignation as wide receivers coach was related to a film session with players when Gundy said he picked up and read from a player’s iPad.

“(I) picked up his iPad and read aloud the words that were written on the screen,” Gundy said in the statement. “The words displayed had nothing to do with football. One particular word that I should never — under any circumstance — have uttered was displayed on that screen. In the moment, I did not even realize what I was reading and, as soon as I did, I was horrified.

“I want to be very clear: the words I read aloud from that screen were not my words. What I said was not malicious; it wasn’t even intentional. Still, I am mature enough to know that the word I said was shameful and hurtful, no matter my intentions. The unfortunate reality is that someone in my position can cause harm without ever meaning to do so. In that circumstance, a man of character accepts accountability. I take responsibility for my mistake. I apologize.”

Gundy quarterbacked the Sooners from 1990-1993, throwing for more than 6,000 yards and 35 touchdowns.

Venables said L’Damian Washington, an offensive analyst for the Sooners, would be the interim wide receivers coach.