John Cena officially retired from professional wrestling this weekend, and had some famous pals sent him congratulatory messages.

Many know Adam Copeland by another name, and as a multi-time world champion in the professional wrestling world.

WASHINGTON (CIRCA) -Mandy Leon breaks down the context of feuds in pro wrestling and brings us behind the scenes of her feud with Taeler Hendrix.Click here to read the full story at Circa.com.

Apparently, sibling rivalries happen amongst all species...tigers are no different.