Bo Jackson
The Tampa Bay Buccaneers desperately wanted to draft Jackson from Auburn in 1984. However, they didn’t like that he was also playing baseball as a dual-sport athlete. They tricked him into visiting their practice field without receiving NCAA authorization (via Fanbuzz).

Then the NCAA suspended Jackson from playing college baseball for the rest of the season. This infuriated him because he believed that the Bucs did this deliberately. Then he vowed never to play for the franchise and caused the team to waste a first-round pick in 1985.