10. Rusev
WWE.comThe first name on this list may not seem like an obvious choice but it's one that would be a great first step for Roman's future main event career. But it can't happen just yet. Rusev has been presented as an unstoppable monster. He's big, he's very physical and thus far, no one in WWE has been able to even slow him down. Big E tried and failed. Jack Swagger is up to bat now and there's no guarantee he can get the job done either. Rusev is a bad man and there is no denying he's tough as leather. And the more he is seen that way, the more he continues to steamroll his opponents, the more his first loss will mean to the fans that want to see him be cut down to size. That's where Roman Reigns comes in. Roman should be the man to take Rusev down, to give The Bulgarian Brute his first loss in WWE. All of the work that has gone into establishing Rusev as the invincible juggernaut will do nothing but transfer directly to Roman. Fans will see that Rusev will dominate against anyone else in the company but against Roman, he is just another Superstar. The loss would not be about burying Rusev, he would live to fight another day. It would be more about showcasing Roman Reigns as the unbeatable force he must become if he is to be WWE's king of the mountain. Putting Rusev down in one match would be a nice way to begin the coronation.