#1. Kevin Owens and Shane McMahon
Kevin Owens and Shane McMahon have been enemies for years now. However, both men have managed to play both the hero and the villain in their two year long rivalry that has seen some truly epic moments.
This all started back in 2017 when Shane McMahon was appointed Commissioner of SmackDown Live, and Kevin Owens became unhappy with the level of officiating during his United States title feud with A.J. Styles.
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Styles ended up coming out of his feud with Owens as champion, mostly thanks to Shane McMahon's repeated efforts to thwart Kevin Owens. This ultimately led to Owens asking for another United States Title match, despite there now being a stipulation that he couldn't have one as long as Styles was champion, and McMahon refusing. Then this happened.
Kevin Owens brought Shane McMahon's kids into it, and Shane understandably lost his temper. Daniel Bryan, the General Manager of SmackDown Live at the time, suspended McMahon and announced that Vince McMahon himself would be on the following week's SmackDown Live to discuss the situation.
Vince announced that Kevin Owens and his son Shane would face each other in Hell in a Cell. Owens then shook Mr. McMahon's hand, but then brutally headbutted him and attacked the Chairman.
Owens and McMahon would then compete in Hell in a Cell with the two having an incredibly brutal match that saw Shane almost kill Owens - and perhaps he would have were it not for the timely intervention of Sami Zayn, who pulled Owens off of the commentary table mere moments before McMahon could elbow drop him from the top of the 'Satanic Structure'.
Owens and Zayn then formed a tag-team and continued to rebel against SmackDown Live's authority, ultimately leading to a WrestleMania match between Daniel Bryan and Shane McMahon in what would be Bryan's first match back after returning from retirement. The pair lost the match and were ultimately fired from SmackDown Live.
Zayn and Owens were moved over to Monday Night RAW, where Owens didn't have anything to do with Shane McMahon at all. He wouldn't have anything to do with him until over a year later when he would confront Shane McMahon about his behavior since becoming 'Best in the World'.
This time Shane McMahon, who was unpinned and terrorizing WWE Superstars, having picked up victories over The Miz and Roman Reigns was a villain and Owens was the returning hero.
In another neat little full-circle move, the above promo also led to Kevin Owens and Shane McMahon wrestling each other at SummerSlam 2019, and once again Owens would find himself up against the bosses' son with his job on the line if he lost. However Owens emphatically won.
Naturally this was expected to be the end of the feud between these two men, but Shane McMahon had other plans when he fined Kevin Owens $100,000 dollars for attacking special enforcer Elias at ringside during their match.
This means that there's a long, long way to go in the saga of Kevin Owens Vs. Shane McMahon yet.
Are there any other current feuds in WWE that are set to boil over? Share them in the comments below!