First there was the rant. Then the mullet and the “Big Daddy” mug. And now Oklahoma State head football coach has given us the singlet.

Gundy threw on a orange singlet to promote the No. 1 OSU wrestling team’s upcoming dual against No. 2 Penn State Sunday at Gallagher-Iba Arena.

The Cowboys enter the dual after completing their 46th undefeated season in program history and its first in 12 years following a 37-3 dismantling of Oklahoma in a Bedlam dual. Penn State also finished its regular season undefeated.

No. 1 #okstate wrestles No. 2 Penn State in a HUGE matchup in Gallagher-Iba Arena Sunday. Don't miss it! Tickets: https://t.co/jEx5nG6ezI pic.twitter.com/L057voXE0W — Mike Gundy (@CoachGundy) February 15, 2017

Gundy is caught up in the excitement and wants butts in the seats.

Currently, the Cowboys men’s basketball team holds the GIA attendance record at 13,611 while the wrestling team’s biggest draw was 10,802 fans Feb. 18, 2001 for a dual.

The dual is at 3 p.m. CT Sunday at GIA.

Projected lineups