Juan Manuel Márquez Méndez (born August 23, 1973) is a Mexican former professional boxer who competed from 1993 to 2014. He is the third Mexican boxer (after Érik Morales and Jorge Arce) to become a world champion in four weight classes, having held nine world major titles from featherweight to light welterweight, including the lineal championship at lightweight. In a career that spanned over twenty years, Márquez was known for being a fast and highly technical boxer who was exceptionally skilled at combinations and counterpunches, yet also willing to engage in slugfests with opponents. He was also credited for his toughness, and never lost a fight by stoppage. His most notable bouts include his four-fight saga with Manny Pacquiao and his fight against fellow Mexican Marco Antonio Barrera. Márquez is considered to be one of the greatest boxers of all time, and is ranked by BoxRec as the thirteenth greatest boxer of all time and the second greatest Mexican boxer of all time, pound for pound. He was inducted into the International Boxing Hall of Fame in the class of 2020. Amateur career Márquez had an amateur record of 82-4, with 72 wins by knock-out. Professional career Featherweight He made his professional boxing debut at age 19 on May 29, 1993, losing via disqualification to Javier Duran. Márquez remained undefeated for six years, compiling a 29–1 record that included wins against future champions Agapito Sanchez, Julio Gervacio and Alfred Kotey. In 1997, Márquez won the WBO NABO Featherweight title, which he defended seven times. During this time, he was referred to as the "best fighter without a world title." Márquez was WBO Featherweight Champion Naseem Hamed's mandatory challenger for 22 straight months. However, the WBO allowed Hamed to schedule other fights instead. During this time, Márquez worked as an accountant while training under Ignacio Beristáin in Mexico City. Márquez would keep this job until winning his first world title in 2004. Márquez vs. Norwood In 1999, Márquez faced Freddie Norwood for the WBA Featherweight title instead. Márquez was knocked down in the second round. In the 8th round, Norwood's glove touched the canvas after an exchange. However, it was not ruled a knock down by the referee who was standing opposite to the action. In the 9th round, Márquez scored a knockdown after a two punch combination. Márquez lost via controversial unanimous decision. HBO Punchstat had Norwood landing 73 out