DALLAS – OCTOBER 11: Running back Mossis Madu #17 of the Oklahoma Sooners gives a downward “hook em horns” sign while walking to the field alongside the Texas Longhorns band at the Cotton Bowl on October 11, 2008 in Dallas, Texas. (Photo by Ronald Martinez/Getty Images)An important component to the Red River Showdown is the taunting that takes place between both sides. The “Horns Down” sign has quickly taken the nation by storm because of this rivalry.Former Texas coach Mack Brown brought this gesture to the NCAA’s attention back in 2012. He said it was the ultimate sign of disrespect toward the program.The NCAA has stated that prolonged forms of “Horns Down” would result in a penalty, and yet, there are still players flashing this gesture because it doesn’t go against the rules.Oklahoma head coach Lincoln Riley had a message for his players about taunting Texas. Riley made it known that his players won’t partake in the “Horns Down” gesture, saying “Our players won’t do it.”It’s already getting chippy between Oklahoma and Texas. Video surfaced of players involved in a pregame scuffle. Due to the pregame argument that took place earlier this morning, the refs have handed unsportsmanlike conduct penalties to every player on the Longhorns and Sooners. This means another unsportsmanlike penalty would result in an ejection.Since the officiating crew refuses to let the two sides get super physical, it’s important that the coaching staffs keep their players in check.It’d be shocking if players throw the “Horns Down” sign during this game because of this latest development – and Lincoln Riley’s message.