The rivalry between Colorado and Colorado State is one of the longest-standing in college football, dating back to their first game in 1892.

Over the last couple of years, this rivalry has intensified, with players from both teams publicly expressing their dislike for one another.

This rivalry was evident on Saturday: Following Colorado’s 28-9 victory over Colorado State, Buffaloes quarterback Shedeur Sanders did not extend his hand to business partner Brayden Fowler-Nicolosi at the 50-yard line. As they passed, Shedeur shared some choice words with his opponent. Here’s a video of their interaction (note: explicit language included).

Earlier that week, Fowler-Nicolosi stoked the rivalry by discussing how last year’s match-up in Boulder played out, where Colorado won in double overtime, 43-35.

“They came with the mindset that it was going to be an easy win,” Fowler-Nicolosi said in an interview. “They saw the predictions of a 27.5-point spread. It was a rude awakening for them. This illustrates that hype and media attention can only take you so far. Ultimately, it’s about matching up 11 players from each team and seeing who fights harder. Let’s see how their Instagram followers help them on the field.”

Fowler-Nicolosi was not finished with the trash talk. During Saturday’s game, he also displayed the “too small” gesture towards Colorado’s Travis Hunter, who later intercepted him in the game.

Check out a clip of Hunter’s interception, which led to him receiving an unsportsmanlike conduct penalty afterwards:

Deion Sanders also addressed the “disrespect” from Colorado State during his postgame press conference.

“It was a fantastic game, very personal and emotional. They brought that tension to the field. We just want to focus on football. The disrespect shown throughout the week was unnecessary. Several of their players took jabs at our program and some of our players. We anticipated a personal game, and it turned out to be just that,” said Deion Sanders.

“I hope our players will conduct themselves better, as you all would have a field day if they didn’t, yet I know you wouldn’t say a word when the opposing team does that to us.”