#3 Finn Balor

Finn Balor shocked many when he defeated Seth Rollins at Summerslam 2016 to become the first ever Universal Champion. Everyone was amazed at the push Balor received immediately after he was called up to the main roster.
His reign as Universal Champion was short lived as he suffered an injury at the hands of Seth Rollins when the latter power bombed Balor on the barricade. He had to relinquish the title the next night on Raw ending what would've been an amazing reign.
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After his return from injury, many thought that he was going after the title which he never lost, but the title was now in the clutches of Brock Lesnar who is being fattened up to be fed to Roman Reigns at Wrestlemania 34. Balor soon got lost in the shuffle and ended up having a lacklustre feud with the likes of Bray Wyatt and Samoa Joe.
Now with Wrestlemania 34 only a few months away, Finn Balor may be a good choice to dethrone Roman Reigns after the latter defeats Brock Lesnar.