#5 Sheamus

The 2010 winner of the King of the Ring tournament has been waiting for a call from WWE to get back to in-ring competition. Sheamus has been out of action with a concussion for some time. Since then, wrestling fans have seen Sheamus' former tag team partner, Cesaro, move to the Red Brand.
At a time when it seems like WWE doesn’t know what to do with Sheamus, they could make his return this week and surprise the fans just like they did with Rusev.
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WWE has a chance to book an interesting angle involving the 2010 King of the Ring and the 2019 King of the Ring. This could result in a feud to determine the King of Kings - step back Triple H. Sheamus is the last active King of the Ring in WWE today and once had a character very similar to Corbin's.
A change in character for Sheamus could work well in his favor and after a long heel run, could return as a babyface. Taking on a fellow big man in a return feud could help him get back to the top of the roster.