Are Cena and Rock friends?

The Rock and John Cena had a rare friendly conversation on twitter yesterday. The Rock tweeted:

When you succeed – embrace & enjoy it. When you fail – honor & respect it. #OurFailuresLeadUsToOurSuccesses

— Dwayne Johnson (@TheRock) December 18, 2012

This was retweeted by Cena, who replied:

Can’t believe I’m doing this but couldn’t say it better myself RT @therock: When you succeed – (cont) tl.gd/kd6mcs

— John Cena (@JohnCena) December 18, 2012

The Rock then replied:

@johncena Not surprised at all you’d RT something positive. The “Steel Horse” is a good man. Brahma Bull vs Steel Horse. Good ring to it..

— Dwayne Johnson (@TheRock) December 19, 2012