John Cena's career is set to culminate at Saturday Night's Main Event on December 13 in Washington, D.C. The Undertaker delivered an emotional message to Cena ahead of his WWE retirement.Cena announced his farewell tour at last year's Money in the Bank in Toronto, Canada. It officially began in Los Angeles on January 6 at the first-ever episode of RAW on Netflix. He turned heel at Elimination Chamber: Toronto, became The Never Seen 17 at WrestleMania 42 and put on some of the best matches of his career from SummerSlam onwards. With WWE and many of his peers paying tribute to John Cena, The Undertaker joined in by writing a simple yet emotional message on X, formerly known as Twitter. "It always a pleasure to share the ring with @JohnCena. Relive all the matches now ⚱️," Taker tweeted. The Undertaker and John Cena have faced each other six times on WWE television from 2003 to 2018. The Deadman won three times, Cena won twice and one was a no-contest. They even had matches under their different personas, with their first one being "Doctor of Thuganomics" Cena vs. "Big Evil" Undertaker. The Rock also pens message to John CenaDespite The Rock's absence from his farewell tour after the shocking heel turn, John Cena still congratulated The Final Boss for his first-ever Golden Globe nomination. Rocky was nominated for the Best Actor award for playing Mark Kerr in The Smashing Machine. Cena shared an image of The Rock as Kerr on his Instagram, with the Hollywood actor returning the favor with an emotional message in the comments section. "Love ya, man, and as you know, always grateful for all you’ve done for the business we love. You are truly the GOAT. Bring your moonshine, I’ll bring the tequila 🥃 🤣," The Rock wrote. Fans were disappointed after Rocky never showed up again on WWE television after he helped Cena turn heel at Elimination Chamber. Nevertheless, the farewell tour is nearing its end, and the WWE Universe is ready for Cena's final match at SNME.