Riddle Teases Bringing Back the WWE United States Championship Open Challenge After capturing the United States Championship at WrestleMania 31, John Cena started a weekly tradition in 2015 where he would issue an open challenge to anyone who wanted to face him for the US title. This led to what many fans believed was Cena's greatest run in terms of in-ring work, as he successfully retained the title a whopping 19 times over the next seven months. "I love it! It's what I want," Riddle said ( h/t Wrestling Inc.). "I think this past Monday was a perfect example...granted, I didn't defend the title, it was just a match, but I would have been more than happy to defend the title against Morrison. I would love to do something like that. It's not to elevate this title; the title has already been elevated. Bobby Lashley had it [and] John Cena had it. It's already a stacked title. This title is going to elevate me on matches that I need to be in so people can see me in a different light."