#3. Roman Reigns no longer trusts Paul Heyman
It was clear last night on SmackDown that Roman Reigns didn't need to fire Paul Heyman as he was apologetic for what he had done.
Heyman will always be loyal to Brock Lesnar and it's reached the point where this loyalty is coming between him and his relationship with Reigns.
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Roman Reigns also knows that whilst Heyman is in his corner, he will never be able to stop Lesnar from coming for him. The only way for him to get The Beast off his back and ensure that none of his tactics are being leaked is to part ways with Heyman.
Reigns needed to fire Heyman before Day 1 on January 1st because it was becoming clear that he wouldn't have been able to trust him to be impartial. As part of their match at Crown Jewel, there were teases that Heyman wasn't completely on Reigns' side and he couldn't take that chance.
Reigns only needs to be thinking about the match with Lesnar at WWE Day 1 and with Heyman in his corner, he would be on edge the whole time.