John Cena. Picture: Bang Showbiz

John Cena has said it's "dangerous" to "blame" someone without taking a look in the mirror to see what you could have done differently.

The WWE superstar - who recently split from his fiancee Nikki Bella before their wedding - has opened up in a relatively cryptic post in which he says it can be "dangerous" to point the finger at others.

He tweeted: "Blame, to assign responsibility for a wrong. This can be a very dangerous word. We want so badly, many times, to shift blame to others due to the ease of not being accountable. When searching for who to blame, your first look should be in the mirror."

His social media post comes after ex Nikki confirmed the former lovers are just friends despite rumours of a reconciliation for their romance, but admitted she had some hope for the future.