renowned think-tanks:
https://siepr.stanford.edu/publications/working-paper/collusion-college-sports-edward-c-obannon-et-al-v-ncaa-et-al-2015
https://www.openmarketsinstitute.org/publications/supreme-court-punts-on-real-change-for-ncaa-players-with-narrow-decision
"Under a long line of case law, the Sherman Act protects workers and other producers, like athletes, from employer collusion."
It's why the professional leagues have collective bargaining agreements between the players & owners.
Even using your narrow definition of the word,
"illegal cooperation to cheat others" is exactly the kind of antitrust violations the NCAA & universities have been found – by the courts – to have committed against its student-athletes.
Some advice: Intellectual topics aren't your forte. Stick to things you actually know about, like trailer parks & prison sodomy.