#4 Tino Sabbatelli

Now, this theory could be a little bit out there. How about WWE NXT Superstar Tino Sabbatelli?
It is reasonably well known that Tino Sabbatelli was indeed dating Mandy Rose in real life at one point of time. Now, we don't know the current status of their relationship, but it's certainly not out of the question to weave in a sprinkling of reality into the storylines. In fact, the best storylines in WWE history have been ones in which blur the lines between reality and fiction.
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WWE could certainly tell the story of a jealous ex-boyfriend in Tino Sabbatelli trying to sabotage any prospects of love in which Mandy Rose could potentially have. The only issue here would be that Mandy Rose is, of course, currently dating Dolph Ziggler as a consequence of the Valentine's date fiasco. Tino Sabbatelli could, of course, say that this wasn't part of his plan, but he could certainly play after jealous ex-boyfriend very well.
Tino Sabbatelli has been recently dealing with an injury which has kept him off of NXT TV. He is currently on a hiatus from the NXT brand recovering from said injury. But it is hoped that he will soon be making a return to NXT/WWE television. What a better way to have Tino Sabbatelli debut on the main roster than by dropping him straight into one of the most popular storylines going currently on Friday Night SmackDown.