Tom Brady, Tiger Woods, Roger Federer, Serena Williams and Michael Phelps are among the top athletes in the 2010s.
Conor McGregor
Conor McGregor transcended UFC with his controversial and colorful personality. The Irishman was always in the headlines and not in a good way. His process in the ring was great. In 2015, at UFC 194, he defeated José Aldo for the UFC Featherweight Championship via knockout 13 seconds into the first round, which is the fastest victory in UFC title fight history. Upon defeating Eddie Alvarez for the UFC Lightweight Championship at UFC 205, McGregor became the first fighter in UFC history to hold titles in two weight divisions simultaneously. He tried boxing and was defeated by Floyd Mayweather Jr. in 2017.