As Saturday Night's Main Event showed, it's become very difficult for WWE to sell John Cena as a heel when fans don't want to boo him.

At the sound of John Cena’s theme song, “The Time Is Now,” fans inside the Pennsylvania Convention Center instantly erupted with cheers as fans shared were prepared to share this moment at Fan Expo Philadelphia with an icon in pro wrestling.

Ron Killings, aka R-Truth, walked in at the WWE Saturday Night's Main Event on Saturday, taunting his ‘childhood hero’ John Cena, whom he wrestled. The 53-year-old made his grand entry on Cena's iconic song. He was wearing the WWE champion's shirt with his own face on and also did the hustle, loyalty, and respect gesture.

There’s no element of surprise with Cena’s run when it comes to results. It was obvious he was at 90-plus-percent odds to win all of his matches since the turn and only made worse by the “retirement tour” branding that gave fans an obvious timeline to follow.

Cena began his answer by kindly recognizing the fan's strong support and connection to his past work in WWE. He then went into a detailed explanation of his current views on his c