#3 Sami Zayn

Main Roster Debut: May 4th, 2015
Championship Opportunities: 6
WWE has no plans for these former AEW wrestlers? Here's why!
Sami Zayn has been an incredible asset to the WWE, primarily because of his versatility between the ropes.
His main roster debut saw him challenge John Cena for the U.S. Championship and while the match was fresh, Zayn suffered a shoulder injury during the match which delayed his main-roster run.
He currently holds a 45.99% loss record on the main roster. ''The Underdog'' has had multiple championship opportunities and while he has come close, he has never held a single title on the main roster.
Despite being overlooked, Sami's recent alliance with Kevin Owens has catapulted him to relevance. And since they are in such prominent positions at WrestleMania 34, there's a strong possibility that Sami Zayn might win a Championship in 2018.
How WWE has messed up John Cena's last run - Check here!