John Cena and Randy Orton's rivalry is one of the most iconic and enduring feuds in WWE history, spanning over a decade and showcasing the evolution of both superstars. The rivalry began in the early 2000s when both wrestlers were emerging as the future faces of WWE. Cena, with his "Doctor of Thuganomics" persona, was rapidly gaining popularity with his brash and confident style, while Orton, a third-generation wrestler, was being groomed as "The Legend Killer," taking down established stars to cement his own legacy. Their paths first crossed in 2002, but it wasn't until a few years later that their rivalry truly heated up. The peak of their feud came during the late 2000s, particularly around 2007–2009, when both men were at the top of their game. They clashed in numerous high-profile matches, including battles for the WWE Championship, and their contrasting styles made for compelling storytelling.