#4 Elias

Heading into WrestleMania 34, The Rock had appeared at six of the previous seven ‘Mania events and many fans were predicting that he would be involved in a ‘Rock Concert’ segment with WWE’s resident musician, Elias.
However, “The Great One” was nowhere to be seen in New Orleans, while the man formerly known as “The Drifter” was involved in a brief altercation with John Cena prior to The Undertaker’s long-awaited return.
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Of course, a match between The Rock and Elias wouldn’t have a lengthy PPV build like many other suggestions on this list, but it’d still be fun to see the two men battle it out in a surprise match on Monday Night Raw or PPV one day.