Conor Anthony McGregor (Irish: Conch??r Ant??in Mac Gr??ag??ir; born 14 July 1988) is an Irish professional mixed martial artist and fighter. He is the former Ultimate Fighting Championship (UFC) featherweight and lightweight champion. As of 1 July 2019, he is ranked #3 in the official UFC lightweight rankings and #9 in the official UFC pound-for-pound ranks.
McGregor started his MMA career in 2008 and, in 2012, he won both the Cage Warriors Featherweight and Lightweight Championships, holding both names simultaneously before vacating them to sign together with the UFC. In 2015, in UFC 194, he conquered Jos?? Aldo for the UFC Featherweight Championship via knockout 13 minutes to the first round, which is the fastest success in UFC title fight history. Upon defeating Eddie Alvarez for the UFC Lightweight Championship in UFC 205, McGregor became the first fighter in UFC history to hold titles in two weight divisions simultaneously.
McGregor began his professional boxing career in 2017. In his debut boxing game, he was conquered by Floyd Mayweather Jr.He is the largest pay-per-view (PPV) draw MMA history, with headlined five out of those six highest-selling UFC pay-per-view occasions. His headline bout with Khabib Nurmagomedov at UFC 229 drew 2.4 million PPV buys, the most ever for an MMA event. His boxing match with Mayweather attracted 4.3 million PPV purchases in North America, the next most in history.On 9 March 2008, McGregor had his first professional MMA bout, as a lightweight, defeating Gary Morris with a second-round TKO. After McGregor won his next fight against Mo Taylor, he made his featherweight introduction in a reduction via entry against Artemij Sitenkov. Following a success at featherweight in his next bout against Stephen Bailey, McGregor considered another career path before his mother contacted his trainer John Kavanagh and reinvigorated him to continue pursuing combined martial arts. 
McGregor then won his second fight, also at featherweight, against Connor Dillon, before moving back to lightweight to get a struggle against Joseph Duffy, where he obtained his next professional reduction after submitting to an arm-triangle choke. Following this, during 2011 and 2012, McGregor went to an eight-fight winning series, during which he won both the CWFC Featherweight and Lightweight championships, making him the first European professional mixed martial artist to hold names in two branches simultaneously. In February 2013, UFC president Dana White chose to Dublin, Ireland to Be Given a Gold Medal of Honorary Patronage from Trinity College and was inundated with requests to sign McGregor to the UFC. Following a meeting with McGregor, and speaking with UFC CEO Lorenzo Fertitta, White offered him a contract days later.
Ultimate Fighting Championship (2013–present)
UFC debut In February 2013, the Ultimate Fighting Championship (UFC) declared that they had signed McGregor to a multi-fight contract.  In linking, McGregor became just the second fighter from Ireland to compete for the company, following fellow SBG team member Tom Egan.
On April 2013, McGregor made his UFC debut against Marcus Brimage on the preliminary card of UFC on Fuel TV: Mousasi vs. Latifi.  Brimage began the battle aggressively, meeting McGregor at the center of the octagon before starting a flurry of strikes to push him . McGregor, repeatedly throwing a counter left hand, found little success with his initial striking. After ascertaining that Brimage was susceptible to some snap kick directed in his chest and chin, McGregor began to apply a looping left hand uppercut, throwing every time Brimage would move forward into striking range. These uppercuts grounded Brimage shortly after McGregor began to utilize them. The bout was stopped 1:07 to the first round.  The win also earned McGregor his initial”Knockout of the Night” award. 
McGregor was expected to face Andy Ogle on 17 August 2013 in UFC Fight Night 26, but Ogle pulled from the bout citing an accident and was replaced by Max Holloway.  McGregor bewildered Holloway with his unusual boxing technique, and his incorporation of a huge variety of taekwondo kicks, a lot of which are not utilized in MMA to a substantial level. McGregor was able to restrain the striking range by using long, non-committal low side kicks to Holloway’s knee and shin, and initiate mixes by jumping with bike and switch kicks. After the battle was brought into the floor, McGregor maintained high control, performing various positional advances, and mitigating his opponent’s offence on the ground.  McGregor won the fight by unanimous decision (30–27, 30–27, and 30–26). After the bout with Holloway, an MRI study showed that McGregor had torn his anterior cruciate ligament (ACL) during the bout and would require surgery, keeping him out of action for up to ten months. 
Return after trauma McGregor was anticipated to face Cole Miller on 19 July 2014 at UFC Fight Night 46 in his comeback bout after recovering from his ACL injury.  However, Miller pulled from the bout mentioning a thumb injury and was replaced by Diego Brand??o.  McGregor fought Brand??o in front of a loud, rowdy crowd of 9,500 in The O2 in his hometown of Dublin, Ireland. McGregor started the struggle with a signature spinning side kick, before finding his range and landing various taekwondo kicks, and left hand counters. Brand??o, a Brazilian Jiu-Jitsu black buckle, tried to instigate two takedowns, so that he could make use of his grappling pedigree, but both efforts were averted by McGregor. Nonetheless, a lot of the fight was spent on ground, as McGregor attained a takedown 1:20 into the bout. When the fight returned to the feet in the third minute, McGregor began to use his left hand cross, and began to cut the cage. Brand??o, trapped between the octagon and McGregor, fell to his side after being struck by another left hand crossover as the fight went to its fourth minute.  The battle has been formally halted by Faith Leon Roberts at 4:05 of the very first round. The triumph earned McGregor his first”Performance of the Night” award. 
Prior to his next bout, McGregor met with Lorenzo Fertitta and signed a fresh multi-fight contract with the UFC. McGregor next confronted Dustin Poirier on 27 September 2014 at UFC 178.  The bout was among the most anticipated fights on the UFC 178 card, with McGregor and Poirier just two of just four men involved in the pre-fight press conference, together with the originally scheduled headliners Jon Jones and Daniel Cormier.  Part of this anticipation stemmed in the challenge that the match-up introduced: Poirier was McGregor’s first competitor ranked in the UFC’s top ten featherweights.  Despite McGregor landing 9 significant strikes to Poirier’s 10, he was able to secure a success early in the first round, by pressuring Poirier onto his back foot, before exploding with a left hook supporting Poirier’s ear, forcing referee Herb Dean to measure in. The finish officially came at 1:46 into the first round.  This marked Poirier’s first UFC reduction via KO/TKO, and earned McGregor his second straight”Performance of the Night” award.  From the post-fight interview with commentator Joe Rogan, McGregor mentioned the UFC Featherweight Championship as his next goal from the organisation, stating that”If [the UFC] want, I’ll eliminate Chad Mendes and step in and give the fans what they need; Aldo vs. McGregor.”
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