#4. Conor McGregor vs. Marcus Brimage
Marcus Brimage was the unfortunate adversary of McGregor's debut in the UFC. The former double-champ entered this bout riding an 8-fight win streak, each of these wins by finish. Brimage had a 4-fight winning streak himself.
The fight served as the ultimate introduction of what's to come from McGregor. The crisp striking, great agility and personality were all on display that night. Multiple uppercuts landed and 'The Bama Beast' went down after about a minute of action.
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An impressive finish was followed by McGregor's first famous one-liner: "Dana, 60 G's baby!" Knocking out Brimage was one of the most important milestones of his career. Had this gone any different, fans might've not been exposed to the superstar that elevated the sport the way he has.
#3. Conor McGregor vs. Dustin Poirier at UFC 257
After competing against each other three times, McGregor and Poirier's rivalry still feels unfinished. The two fighters first met in 2014 for a featherweight bout at UFC 257. 'Mystic Mac' predicted that this fight would be easy and it sure was as he beat 'The Diamond' in the very first round via TKO.
Poirior landed a few shots and was well prepared for McGregor's straight left. Adjustments were made and a shot landed around the guard of 'The Diamond', which put him on the mat. Follow-up shots finished the fight and added stock to the rise of McGregor.
The bout did more than give him title contention, but it planted the seed for their future fights in the lightweight division and potentially a fourth fight once McGregor recovers from his leg injury. McGregor and Poirier have had a rocky relationship with each other, but fans have loved every second of it.