#3 Jon Jones vs Brock Lesnar
Ask yourself this - does a man who's tested positive for banned substances twice and despite that been given an immediate title shot, deserve to be inserted into the championship picture if or when he makes his prodigal return?
Many would slam their fists down in refusal, but then, what of the considerable fighting talent that still remains in Jon Jones? His image and possibly, his legacy are muddied, but there are hordes of fight fans who would pay to see him fight.
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Brock Lesnar is similar in quite a few ways - he was given a UFC title shot when he had barely any experience in MMA and was brought back at UFC 200 just for star-power despite being "retired".
Jon Jones calling out Brock Lesnar after knocking out Daniel Cormier (but not beating him) was likely him trying to kiss and make up with fans and UFC suits after all he put them through. Tarnished images aside, this is a fight we'd all love to see and tickets will sell as sure as the Beast takes his prey to Suplex City.