John Cena is set to retire in less than a week on December 13 at Saturday Night's Main Event. To commemorate the WWE Superstar's legendary career, Elon Musk's X has subtly paid tribute to Cena ahead of his final match. The GOAT announced his farewell tour last year at Money in the Bank in London, England. It officially started on RAW's debut episode on Netflix and took a literal turn at Elimination Chamber: Toronto, when he finally became a heel after more than 20 years.John Cena became a 17-time WWE World Champion and won his first Intercontinental Championship during the tour. He's set to face Gunther at SNME inside the Capital One Center. In tribute to his career, Elon Musk's X, formerly known as Twitter, has officially launched Cena's personal hashtag: #ThankYouCena. It features an emoji of The GOAT doing his legendary "You Can't See Me" taunt. John Cena is leaving a lasting legacy that spanned two generations of WWE. He started the Ruthless Aggression Era and took the company to new levels during the PG Era, the Reality Era and the Network Era. John Cena believes he'll be forgotten after WWE retirementSpeaking on the Joe Rogan Experience, John Cena commented on his upcoming retirement from being an in-ring performer. Cena even claimed that he'll be forgotten in WWE after a few weeks of his farewell. "I’m gonna retire on the 13th. They will be moved on by the Royal Rumble, and that is real facts, I will be forgotten. That is not a plea to sympathy of like, 'Always remember me.' By the Royal Rumble, the Road to WrestleMania, nobody gives a f*ck, 'cause they're focusing on what the show is. That's like three weeks after I retire. Three weeks after I retire, nobody's going to give a f*ck," Cena said. [H/T WrestleOps]While Cena feels that way, the WWE Universe will never forget him, though it's inevitable that all parties are going to move on.