Quiroga made his professional debut on March 16, 1987, at the age of 17. In his 12th professional fight, he defeated former WBA light flyweight champion
Joey Olivo. Two fights later, he claimed the IBF Super Flyweight title with a decision win over champion
Juan Polo Perez. Later that year, he defended his title with victories over Vuyani Nene and Vincenzo Belcastro. On June 15, 1991, at the
HemisFair Arena in San Antonio, Quiroga defended his IBF Super Flyweight Title for the third time with a brutal and bloody twelve-round unanimous decision over undefeated "Kid"
Akeem Anifowoshe. Anifowoshe collapsed after the fight with a blood clot on the brain, and never fought again. The fight was named 1991 Ring Magazine Fight of the Year. The following year, he defeated undefeated challenger Carlos Mercado and former WBO Super Flyweight champion Jose Ruiz. In 1993, his championship reign came to an end with a tko loss to
Julio César Borboa. He returned to the ring in 1995, but lost by majority decision. ==Murder==