The assistant head football coach of the Oklahoma Sooners resigned on Sunday after using an offensive term during a training session. Cale Gundy, who was the Sooners’ quarterback between 1990 and 1993 and had worked on the team’s staff since 1999, detailed the incident in a social-media post announcing his decision to step down over the weekend. “Last week, during a film session, I instructed my players to take notes. I noticed a player was distracted and picked up his iPad and read aloud the words that were written on his screen,” Gundy wrote. “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, as soon as I did, I was horrified.” Gundy added that while his use of the unspecified term was unintentional, it was unacceptable. “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.”