John Cena has become the newest member of WWE's grand slam champions club after winning the Intercontinental Championship. Who does he join?

Before his final Monday Night RAW at Madison Square Garden, the legendary WWE star John Cena has sent a message to his fans.

"This might be something that's going to be normal for guys when they get ready to leave. This is a great idea. The way I see it, I mean, having these young guys vie for that position and then one of ...