Paul Heyman has no pull
After Smackdown and broadcasted in Talkin' Smack, Paul Heyman attempted to address the situation in his favor about the contract signing. Adam Pearce and Sonya Deville did not budge in Heyman's frustration on Cena's signature. As Deville stated, Roman Reigns will defend the Universal Championship at Summerslam against John Cena. But, will it be the end of the conversation? Heyman never loses a challenge and he may find a way to twist things around.
(Note) Heyman is a persuasive guy. I wonder if he can persuade Finn Balor to step up to Cena. After all, Reigns only agreed to defend his title against the Prince.