During last night's WWE Extreme Rules pay-per-view, there was a major spot during the WWE Championship match that saw Ryback spear John Cena through a wall of LED lights. Both men were incapacitated, and the referee ended the title match as a No Contest.
In case you missed the Extreme Rules post-show, WWE played an exclusive clip of medics tending to John Cena. The WWE Champ ended up recovering before being placed in an ambulance, tore off his neck brace and walked off with the help of a few referees.
So far as we know, the angle was not meant to write off John Cena. With the recent injuries of Dolph Ziggler and The Rock, the absence of CM Punk, and part-timers like Triple H and Brock Lesnar expected to be taking time off, taking Cena out of the game given the current WWE landscape would be a huge hit for the company.