Saúl "Canelo" Álvarez, born July 18, 1990, in San Agustín, Jalisco, Mexico, is a Mexican professional boxer renowned as one of the sport's pound-for-pound greats. Standing 5-foot-7½ inches with a 70½-inch reach and fighting orthodox, he turned pro at age 15 after starting boxing around 13, inspired by his brother Rigoberto, and quickly amassed an early record of 31-0-1 by 2010, including knockouts against older opponents.[1][2][3][4][5][8] Álvarez has won world titles in four weight classes—super middleweight, junior middleweight, middleweight, and light heavyweight—becoming a four-division champion with victories like his 2010 WBC light middleweight title over Matthew Hatton, 2015 middleweight crown against Miguel Cotto, 2018 WBA super middleweight strap via TKO of Rocky Fielding, and 2019 WBO light heavyweight knockout of Sergey Kovalev.[1][3][4][5][6][7] Key rivalries defined his rise: he drew with Gennady Golovkin in 2017, lost a majority decision in their 2018 rematch before winning the trilogy in 2022, and in 2021 became the first undisputed super middleweight champion by stopping Caleb Plant.[1][4][6] With a record of 63-3-2 (39 KOs) as of late 2025, Álvarez unified super middleweight titles (WBA, WBC, WBO, Ring) multiple times, defending against John Ryder and Jermell Charlo in 2023.[3][4][7] In May 2025, he defeated William Scull by unanimous decision in Riyadh, Saudi Arabia, regaining undisputed status.[4] Later that year, he lost the titles to Terence Crawford via unanimous decision, alongside a prior 2022 light heavyweight loss to Dmitry Bivol.[4] Currently 35, the Guadalajara native remains a unified super middleweight champion and boxing's top draw, trained by Eddy Reynoso, with his next fight TBD.[1][3][7]