5 greatest storylines of the Reality Era

#4 Cena's U.S. Title Open Challenge

Cena issuing his first challenge

After John Cena defeated Rusev at WrestleMania 31 to win the United States Title, it marked the beginning of The Johnn Cena United States Title Open Challenge. Starting next night on Monday Night Raw, Cena began calling out anyone from the locker room who was tough enough to hang with him, and wanted a shot at glory.

This challenge resulted in weeks upon weeks of incredible matches, with Cena delivering classics against the likes of Sami Zayn, Dean Ambrose, and Kevin Owens.

The sole purpose of the Open Challenge was to elevate future Superstars by squaring them off against John Cena, and it ended up doing the same. Owens and Ambrose went on to become top stars on the Raw roster. Cena lost his title to Seth Rollins at Summerslam, with his reign lasting a total of 147 days.