#4 Baron Corbin (2017)
A year before Braun Strowman blew his title shot at Hell in a Cell, Baron Corbin blew his own opportunity. The 'Lone Wolf' won the Money in the Bank briefcase in the only SmackDown-exclusive edition of the event, but things went downhill quickly.
Apparent heat from WWE officials turned into a failed cash-in attempt on SmackDown. As soon as his match began, Corbin got distracted by John Cena and this enabled then-champion Jinder Mahal to roll him up to defend his WWE Championship.
That same week, Cena made a mockery out of Corbin and soundly defeated him at SummerSlam. Luckily for the King, he has more than recovered from that blow. Since then, Corbin won the United States Championship, got his head shaved and became the general manager of RAW.
2019 saw him retire Kurt Angle and win the King of the Ring tournament. Corbin is now one of WWE's most reliable men and has evolved into a solid heel on SmackDown. It wouldn't be ludicrous to suggest that King Corbin could win the Universal Championship in the near future.