#5 Zack Ryder
As noted in an earlier slide, Zack Ryder joined WWE alongside Curt Hawkins. Ryder and Hawkins joined WWE developmental in 2005 and got a call-up to the main roster in 2007, working a high-profile storyline alongside Edge. Ryder and Hawkins became tag team champions in 2008, becoming the youngest-ever WWE tag team champions.
Things slowed down for Ryder after initially becoming a singles wrestler. The popularity of his YouTube series eventually led to WWE management taking notice and regularly using him. In 2011, Ryder won his first singles title, the United States Championship. He lost the U.S. title less than two minutes after winning it at TLC.
In April 2016, Ryder unexpectedly won the International Championship as part of a Wrestlemania ladder match. Sadly, the title was won by The Miz the following night on Raw.
When you do the math and realize that Ryder has been a Tag Team Champion, the International Champion and the United States Champion of the WWE, that means that he is only one belt short of being a Grand Slam Champion.
Having held three of WWE's major titles, Ryder is in rare company as the same cannot be said about a lot of the company's all-time greats. Ryder is currently injured, but when he gets back to 100 percent, it will be interesting to see where he winds up on the roster.