John Cena made a surprise return to WWE on Saturday night when he shocked the packed o2 arena in London at the Money in the Bank premium live event and made a subtle reference to a recent viral video he featured in. The 46-year-old former 16-time world champion shocked the audience in attendance and teased a potential WrestleMania event happening in London in the near future. That was until he was interrupted by up-and-coming Australian superstar Grayson Waller who suggested that WrestleMania should be held in Australia instead and also offered Cena the chance to appear on a future installment of his talk show 'The Grayson Waller Effect.' When Cena declined the offer he retorted with his own invitation by saying "How about 'can I enjoy some time with my friends?" Sign up to our free Indy100 weekly newsletter At the moment many people might not have even noticed this line or questioned what it was about but it was actually a very sly nod to a viral video that circulated about Cena last week. In the viral clip, a WWE fan had asked Cena, who was in a restaurant with his friend, if he could shout his iconic catchphrase 'You Can't See Me.' Cena replied by saying: ""How about I enjoy some time with my friends?" And there you go. Thankfully, Cena did stick around and spend some time with his friends and eventually delivered an Attitude Adjustment to Waller, potentially setting up a future confrontation between the pair. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.