WATCH: John Cena defends the honor of wrestling in Foot Locker ad

Don't tell John Cena that wrestling isn't real. He may shout at you in a Foot Locker commercial.

In an ad celebrating the beginning of Foot Locker's Week of Greatness, Cena takes great offense to someone suggesting that wrestling isn't quite as real as its made out to be.

It's quite entertaining, so are the other ones featuring Tim Duncan, Derrick Rose, Manny Pacquiao and James Harden.