17-time World Champion John Cena wrestled in his final match on tonight's Saturday Night's Main Event. The WWE Universe heartbreakingly bid goodbye to The Cenation Leader.After a year-long retirement tour, John Cena wrestled in his final match against Gunther at Saturday Night's Main Event. The GOAT put on an incredible display of action inside the ring and, for the most part, took control of the match. The match was filled with great spots as fans got to experience 'Super Cena' one last time. Throughout the bout, Cena hit his opponent with several Attitude Adjustments, including one from the top of the turnbuckle. The Chain Gang Soldier even tried to make The Ring General tap out to the STF, but the former World Heavyweight Champion did not give up.Going into the bout, Gunther vowed to make Cena tap out to the Sleeper Hold. He managed to do the unthinkable when he locked it in on The Cenation Leader as the latter surprisingly tapped out. In this moment, fans sent a heartbreaking message to John, "don't give up," which has been the legend's motto for the longest time.Check out the final stages of their match below:After the match, almost everyone from the locker room showed up to acknowledge The GOAT. CM Punk crowned Cena with his WWE World Heavyweight Championship, while Cody Rhodes put the Undisputed WWE Championship on Cena's shoulder.