#4 John Cena defeats Seth Rollins for the United States Championship (Night of Champions 2015)
Seth Rollins was ruling the world in 2015. He was the first guy to ever cash in a Money in the Bank contract at WrestleMania and did it in spectacular fashion to defeat Brock Lesnar and Roman Reigns. He held onto the title at all costs and ended up defeating John Cena at SummerSlam with both the WWE and US Titles on the line to become the first ever man to hold both titles at the same time.
It would be short-lived, however, as he held the belt for less than a month when he lost the belt back to Cena at Night of Champions. Rollins ended up going down with an injury not too long after, but there was so much potential to be had with Rollins holding both titles. Ring of Honor did it much better when long-reigning TV Champion Jay Lethal would win the ROH World Title, and keep the TV Title for another four months before his 500+ day run as TV Champ was ended.
In any event, Cena’s open challenge idea worked great, but it came at the great destruction of Rusev, who until he met John Cena was built up to be an unstoppable monster. Rusev still hasn’t recovered from the WrestleMania loss of the US Title to Cena, and that was nearly three years ago. Cena would go on to eventually lose the title to a returning Alberto Del Rio, whose tenure in the company after the late 2015 return did not go well nor last very long.
In the end, this was a bad title change because the belt was handled in a very mediocre manner after Cena won it back, and the title went back down to being a meaningless piece of hardware instead of a prestigious title.