#1. Former WWE Superstar Alex Riley
Alex Riley was once seen as an up-and-coming star in WWE until it appears that he had a disagreement with John Cena.
The altercation with the company's face seemed to cost Riley his push with it being revealed that a botched elimination from the 2011 Royal Rumble seemed to be the main catalyst for the issue between the two men.
Riley even opened up about their heat in an interview with Sportskeeda's Chris Featherstone earlier this year.
“I think it came down to, at the end, two men just not liking each other. As sad as that is, it had an impact on my career because he is who he is.”
Riley was used as both a commentator and announcer in WWE before his release from the company in 2016.
The former star has since remained around the business and most recently noted that he was open to a WWE return and was loyal to Vince McMahon so he wouldn't be tempted to head over to AEW.