There actually is a rule.
With all the craziness in college football, The SEC office decided to head off problems that were obviously brewing. The Big 10, Big 12, ACC, PAC 12 Mountain West, have all passed similar policies…
On August 25, 2026, the SEC adopted The Eligibility on former Professional Athletes ..The policy defined professional athletes as one of the following:
1) Signed a contract with any Professional Team….ie…NFL or any professional football league, NBA/G League, WNBA
2)Previously declared for the NFL, NBA, WNBA draft without properly withdrawing
3)Been on a professional roster in those leagues or their affiliates…