#4 Rey Mysterio
Even though Rey Mysterio has been giving us some of the best TV matches for the last few weeks, he is not in the main event scene. The luchador is a three-time World Champion, and the veteran would love to make it four.
Mysterio is not a stranger to the Chamber matches as he already boasts a record of three appearances inside the Chamber, and finished as the runner up twice.
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#3 Andrade "Cien" Almas
Rey Mysterio's current rival and fellow luchador Andrade "Cien" Almas has been on fire since his debut. Even though he has not been winning many matches as he would like, it is a treat to watch him wrestle. Almas' matches are often received with "This is Awesome" chants.
Almas has never been in the WWE title picture, and this would be a massive opportunity for him. Having someone as innovative as Almas inside the Chamber will only elevate the quality of the match.