5 Bitter WWE rivals who were great friends off-screen 

#4 Tommaso Ciampa and Johnny Gargano

Tommaso Ciampa and Johnny Gargano are the best of friends outside of the ring

Tommaso Ciampa and Johnny Gargano came through the ranks in NXT together as DIY before they were shockingly split when Ciampa decided that it was too much for the fans to think that he was replaceable.

When DIY were unable to regain their Tag Team Championships, Ciampa attacked Gargano and started what would become the bitterest rivalry in NXT for more than a year. Ciampa would attack Gargano from behind a number of times and the duo would then go on to main event several Takeover events before their feud was finally settled.

Somehow the two men have now been able to turn things around and are back on the same page in NXT, but Ciampa now has another enemy in his sights instead of his former teammate. The two men once lived together when they were part of a tag team and were even promoted to the main roster at the same time a few months ago before Ciampa's injury forced them to be sent back down, so it's easy to see why they have become so close.