#3 Should not be - Rusev

Rusev seems to be marching towards the upper mid-card after a brief feud with Aiden English, and also receiving a United States Championship match unexpectedly at the pre-show of WWE Crown Jewel.
Despite being one of the most popular superstars amongst the WWE Universe, Rusev has not received the push he deserves.
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He is just being used as a filler on SmackDown Live. The WWE Creative have had Rusev battle for the US Championship, WWE Championship, and SmackDown Tag Team Championships in 2018, but never has he been able to win a title.
His inclusion in the 5-on-5 match may see The Bulgarian Brute getting eliminated from the match in its early stages, which would further depreciate his character. Thus, it is better for him to stay out of the match.
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