Irishman Conor McGregor (“The Notorious”) became the biggest star in the sport of mixed martial arts while claiming the Ultimate Fighting Championship’s featherweight and lightweight titles. Born in Dublin, Ireland, in 1988, Conor McGregor rose from a tough neighborhood to become the biggest star in the sport of mixed martial arts (MMA). After joining the Ultimate Fighting Championship (UFC) in 2013, “The Notorious” unified the featherweight division with his title win in 2015, and the following year he became a two-division champion by winning the lightweight title. McGregor also famously fought boxing champion Floyd Mayweather Jr. in 2017.
Conor McGregor made his professional debut on March 8, 2008, for the London-based promotion Cage Warriors, winning by TKO. He lost two of his first six fights before reeling off an impressive winning streak, claiming both the featherweight championship and the lightweight championship in 2012. Signed by UFC President Dana White in early 2013, McGregor impressed with a first-round knockout in his April debut for the organization. He continued his winning ways through July 2015, when he defeated Chad Mendes for the interim featherweight title. That December, he knocked out Jose Aldo in a record 13 seconds to unify the featherweight title.
When lightweight champion Rafael dos Anjos pulled out of their planned March 2016 title bout due to injury, McGregor jumped one more weight class to fight Nate Diaz at 170 pounds. The Irishman was eventually worn down by the bigger Diaz before submitting to a chokehold, ending his 15-match winning streak. In their much anticipated rematch that August, McGregor again jumped out to a fast start before the tide turned. This time he rebounded to win the crucial fourth round, and held on through Diaz’s desperate late flurry to win the instant classic by majority decision. Dropping back to the more comfortable lightweight class, McGregor delivered another impressive performance with a second-round TKO of Eddie Alvarez in November 2016, simultaneously making him the UFC’s lightweight and featherweight champions.