John Cena's 5 greatest WWE moments 

4. US Championship Open Challenge

This storyline is probably one of John Cena's greatest. He had a complete renaissance after winning the title from Rusev. He pledged to make the title more prestigious, and he did it in absolutely exciting fashion.

Hosting an open challenge every week, he had amazing matches with various superstars like Cesaro, Sami Zayn, etc. This angle elevated the title, at the same time removing doubts about the champ's in-ring prowess.

It's also worth mentioning that Kevin Owens got a dream main roster introduction when he beat Cena senseless under the pretense of answering his open challenge.