#3 Rey Mysterio
Rey Mysterio is certainly an underdog in the World Cup bracket. As per usual, he’s the smallest competitor in the field. On top of that, the injury issues that have plagued him in recent years mean that he probably shouldn’t be booked to have to work three featured matches in the same night.
For all of these limitations, Mysterio is a legendary figure with the buzz having just staged his WWE comeback. While it’s difficult to predict another world title reign for Mysterio at this stage of his career, if WWE did want to put him in the WWE Championship picture to work with the likes of AJ Styles or Daniel Bryan in the months ahead, it could produce a hardcore fans’ dream match—albeit the better part of a decade past when most of us would have most liked to have seen it.
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Mysterio’s not the favourite, and I’ll openly concede I’m probably overrating him here. Still, for the novelty of his new WWE run and being a guy who could yield a logical, direct benefit from the title win, he finds himself in the number three spot.