#4 Brock Lesnar stunningly costs The Usos their SmackDown Tag Team Championships
Could Brock Lesnar show up where you least expect him to, costing The Usos the WWE SmackDown Tag Team Championships? And following the match, he could lay both men out to ensure that they don't interfere in the main event.
This could be a great way to put the titles around the waists of Ford and Dawkins without having to make The Usos look weak. It would also be a genuine surprise because nobody expects Brock Lesnar to show up on the undercard.
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#3 Brock Lesnar surprisingly helps Roman Reigns remain the Universal Champion
Brock Lesnar may have a very selfish reason to ensure that Roman Reigns remains the WWE Universal Champion. If he drops the title to The Demon, the match in Saudi Arabia will be a non-title affair.
According to WWE.com, these are the rules:
"...Whether that contest will be for the Universal Championship depends entirely on what happens in The Head of the Table’s title match against “The Demon” Finn Bálor at WWE Extreme Rules."