The John Cena/Batista Rivalry is a current feud in WWE, and is a continuation from their feud from 2008 and 2010.
These two wrestlers had similar career rises, both debuting in 2002, both winning World titles in 2005 and being drated with the world titles to their seperate shows.
In 2008 in a last-minute matchup, by Mike Admle, John Cena was placed in a match against Batista at SummerSlam, which Cena failed to defeat Batista, which also cost him three months of his career. In an interview, Batista claimed their feud was suppose to last well into WrestleMania 25. By the time Cena returned to WWE, Batista was in a feud with Randy Orton.
In 2010, Batista helped Mr. McMahon attack Bret Hart, which Cena came to the rescue. At Elimiantion Chamber, Batista scerewed Cena out of the title. Making them have a match at WrestleMania 26. Over the course of a month, Batista mocked Cena over his loss at SummerSlam to him.
In the Summer of 2012, Batista returned to WWE again, as a heel replacing an injured King Sheamus as his opponent for SummerSlam, with Batista ordering a rematch between himself and Cena, which Cena accepted.