5 reasons why Brock Lesnar quit UFC and came back to WWE

#1 Re-build confidence

Lesnar’s UFC 200 return was a big surprise

There's absolutely no doubt in our minds that Brock Lesnar was frustrated by the manner in which he left the UFC. If it was up to him he probably never would've left, and that's about as truthful as you can get. His confidence would've likely been at a low, and going to WWE would've provided him with a chance to really re-build his image and credibility within the eyes of the public and himself.

Plus, it gave him time to reflect and possibly plan for an MMA comeback in the process. As the years went on Brock was clearly starting to get his swagger back, and alot of that is down to the time he had to look back on things.

In the end he did in fact return to the octagon and whilst the result has now been overturned, on the night, Brock was able to have his hand raised one last time.