Royal Rumble, the maiden pay-per-view of the year, is just a couple of days away. RAW and SmackDown have confirmed a total of eight matches thus far, including a number of title bouts.Being one of the significant shows of the year, Royal Rumble has a long history, and it will be the 33rd edition of the PPV this year. The show will be held at the Minute Maid Park in Houston, Texas. With battle royal-style matches for men and women, it should be a fantastic event. Every year, a number of unexpected names show up at Royal Rumble, surprising the WWE Universe.In this article, we take a look at five colossal names who could make unexpected appearances at the Royal Rumble matches this year.#5 John CenaJohn CenaJohn Cena has been away from the squared circle for a while because he has been a busy man in Hollywood. As a matter of fact, it's been one year since the former poster boy of the company last wrestled in a WWE ring. Undoubtedly, fans would love to see him make a surprise appearance at the Royal Rumble this year.Having missed the event with an unfortunate injury last year, he also didn't wrestle at WrestleMania 35. However, the former WWE Champion made a special appearance at the Showcase of Immortals, delivering an entertaining segment with Elias.As WrestleMania 36 is around the corner, the Leader of Cenation would love to have a match, and Royal Rumble could be the start of a program that builds to the biggest show of the year. A shocking Royal Rumble entry from Cena could become a talking point of the show, and he might eliminate a couple of superstars along the way. Given Cena's record in Royal Rumble matches of the past, he could be a major threat to the other men in the ring. View this post on Instagram A post shared by John Cena (@johncena) on Jan 25, 2020 at 6:29am PST