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Who has beaten Conor McGregor?

The biggest star in MMA has lost four career fights. Who has beaten him, and how’d they do it?

Conor McGregor walks across the Octagon after defeating Donald Cerrone in a welterweight bout during UFC246 at T-Mobile Arena on January 18, 2020 in Las Vegas, Nevada. Photo by Steve Marcus/Getty Images

UPDATE: Well, we can add another loss. Dustin Poirier stunned Conor McGregor in the second round with a strike that sent down the Notorious one and resulted in a TKO. McGregor had won via TKO in their previous fight in 2014. Maybe we get a rubber match?

After announcing that he was retiring from UFC in June, Conor “Notorious” McGregor will be back inside the octagon Saturday night for UFC 257 on ESPN PPV+. McGregor will be facing Dustin Poirier, which is a rematch from 2014 at UFC 178. McGregor defeated Poirier in Round 1 by technical knockout, which was the beginning of his legendary UFC career.

Poirier will be looking for revenge and trying to give McGregor his fifth loss ever in his MMA career. Not many have been successful in taking down the confident mixed martial artist, but it has happened. His four career MMA losses have all come via submission, while his lone boxing loss was via TKO.

Here’s a look at who has defeated McGregor and how they ultimately did it.

Artemij Sitenkov, Cage of Truth 3
June 28, 2008 Submission (Kneebar)
1st Round 1:09

After starting out his professional fighting career with two TKO wins over Garry Morris and Mo Taylor, McGregor met his match in Artemij Sitenkov. The 5-foot-6 fighter out of Lithuania took down “Notorious” McGregor in the first round with a kneebar submission.

Joseph Duffy, Cage Warriors 39
November 27, 2010 Submission (Arm-Triangle Choke)
1st Round 0:38

A couple of years later still on the minor league circuit, McGregor walked into Cage Warriors 39 with a record of 4-1. However, he did not leave with his fifth win. Instead, he receiving his second loss as Joseph Duffy put him in an arm-triangle choke, which done correctly is devastating move.

Nate Diaz, UFC 196
March 5, 2016
Submission (Rear-Naked Choke)
2nd Round 4:12

After those two losses, McGregor ripped off an amazing 15 straight wins, which included his UFC debut on April 2013. At UFC on Fuel TV 9, McGregor defeated Marcus Brimage by technical knockout in Round 1. But three years later, he would suffer his first UFC defeat at UFC 196 against Nate Diaz. Diaz dropped McGregor in Round 2 by submission using a rear-naked choke.

However, McGregor would get his revenge on Diaz five months later in August at UFC 202, where he won by majority decision.

Floyd Mayweather (Boxing loss)
August 26, 2017
10th Round TKO

After dominating the UFC and making his case as one of the better fighters, McGregor took his talents to the boxing ring. In a match that featured a little bit of everything leading up to it, McGregor surprisingly hung tough with Floyd “Money” Mayweather, who almost took him the distance. Despite the loss, McGregor added another legendary moment to his storied fighting career.

Khabib Nurmagomedov, UFC 229
October 6, 2018
Submission (Neck Crank)
4th Round 3:03

Finally, his last loss happened the next year against Khabib Nurmagomedov at UFC 229. This fight featured a lot of bad blood between the two fighters, which carried out to into the post-fight. Ultimately, Nurmagomedov came away with the victory over McGregor in Round 4 using a neck crank.