First, it was growing out a mullet last season.
Then, it was drinking out of a "Big Daddy" coffee mug on signing day.
Most recently, it's wearing a singlet.
Wednesday, Oklahoma State coach Mike Gundy put out this video on Twitter, encouraging Cowboys fans to go to Gallagher-Iba Arena to support the Oklahoma State's No. 1 ranked wrestling team face No. 2 Penn State.
And yes, Gundy put on a singlet for the video.