#4 Matt Riddle shows up to attack Lesnar
Matt Riddle has openly declared his intentions to face and retire the Beast, Brock Lesnar, for years now. The NXT Superstar took this to the next level recently when he sent out a tweet warning the Beast that he'll ruin his cash-in on RAW tonight.
While this could be a random tease from The Original Bro, he can shock us all by appearing on RAW tonight. If he does manage to ruin Brock's party (no pun intended), this could set up a huge match between the two down the line, possibly at next year's WrestleMania.
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#3 Brock turns on Heyman and refuses to cash-in
Paul Heyman's announcement of Brock's cash-in came immediately after Stephanie McMahon declared that the Beast would be punished for his action of disrespecting the MITB contract. This was a smart move from the advocate to avoid any issues between his client and the Authority.
But what if the beast refuses to cash-in tonight? Him turning his back on Heyman and ignoring his commitment might get Heyman into trouble, and can kickstart the eventual break-up of this legendary duo. How will Heyman handle the situation if his client denies to obey him? It will be interesting to see that.