 Thank you so much for letting me play in the house that you built for so many years. The 47-year-old says he'll compete at next year's Royal Rumble, Elimination Chamber, and WrestleMania, which will be his final events. Cena made his WWE debut in 2002. Matt Piper, CBS News. In Pamplona, Spain. Time for the annual Running of the Bulls. This is CBS News.