Gunther sent a four-word message to John Cena ahead of his final match at WWE Saturday Night's Main Event next weekend. The veteran won the Last Time is Now tournament on WWE SmackDown this past Friday night.LA Knight battled Gunther in the main event of this week's edition of SmackDown in the finals of the Last Time is Now tournament. The Ring General tapped out Knight to win the tournament and will be facing John Cena in his retirement match at Saturday Night's Main Event on December 13 as a result of the victory.The former champion took to social media today to send a message to The Cenation Leader ahead of their match next weekend. He claimed that he was the only deserving star to battle Cena in his retirement match, and you can check it out in the Instagram post below."The only deserving one," he wrote. View this post on Instagram Instagram PostCena captured the Intercontinental Championship from Dominik Mysterio last month on WWE RAW. However, he lost the title back to Dirty Dom at Survivor Series after Liv Morgan interfered in the match. Morgan hit the legend with a low blow, and Mysterio capitalized with a Frog Splash to win the Intercontinental Championship for the second time.John Cena comments on his upcoming WWE retirementJohn Cena recently shared his thoughts on his upcoming retirement from professional wrestling.Speaking with The Ringer, Cena said that he understood fans being skeptical of his retirement but vowed never to compete again following his match against Gunther at Saturday Night's Main Event."You don't have to believe anything you don't want to. What I've been able to do over 23 years is turn a lot of non-believers around and that is by my actions. I don't expect anyone to believe that like, 'Hey, I'm retiring'. Oh, no. The precedent hasn't been said. The precedent for wrestling retirement is like a wrestling wedding, like something's going to go wrong in the wedding. No one ever retires. I understand the skepticism, and you'll know I'm serious when I never come back." said Cena. [16:55-17:47]Finesse @ProWFinesseLINKJohn Cena is the hero who lives by the motto of never giving up. Gunther is the villain that forces his opponents to surrender. In his final match, Gunther vows to make the hero finally give up. That's the story. Pro wrestling is simple.It will be fascinating to see what WWE has planned for John Cena's final match next weekend at Saturday Night's Main Event.