WWE World Heavyweight Champion for the third time after winning his comeback fight against Alberto Del Rio last night.
The pair tangled in a top-of-the-bill clash during the Hell In A Cell pay-per-view event at the American Airlines Arena in Miami, Florida.
A bumper night of grappling also saw the Rhodes Brothers take the Tag-Team Championship bout, Big E Langston take the US Championship and AJ Lee retain The WWE Divas Championship.
But the big draw was Cena's return from a tricep operation which had him sidelined for more than two months.
He wore a protective sleeve over the limb in question, but that didn't stop Del Rio focusing on it in his offence against Cena, smashing the arm into the side of the ring.
But after a bout in which Del Rio often looked like gaining the advantage, Cena took him down with his trademark Attitude Adjustment move and a pin.