Guillermo Jones has received a suspension of two years from the World Boxing Association (WBA) after he tested positive for a banned substance in his "B" sample.
The former World Boxing Association's WBA Cruiserweight Boxing Champion of the world had tested positive for the banned substance Furosemide just hours before the highly anticipated Denis Lebedev-Guillermo Jones rematch in Moscow. The sample was taken before the weigh-in, and the results were announced before the fight. The anti-doping control was made by Swiss Laboratory for Doping Analyses (LAD). The fight was called off as a result.
Gilberto Jesus Mendoza, vice-president of the WBA, said "B" sample of Jones indicated a high presence of the substance Furosemide that is the same drug found in the prior sample and in previous tests. The WBA Vice-president said Guillermo Jones is a repeat offender and is suspended for a period of two years, as stated in the Health and Safety Code. Mendoza added that Jones would also lose the status of champion and the position of mandatory challenger. Last year, the WBA Cruiserweight Boxing Champion of the world tested positive for the same substance after the 11th-round knockout victory over Lebedev. The 6'4" Panamanian, who was fighting for the first time since late 2011, stopped home favorite and WBA cruiserweight world champion Denis Lebedev.
Lebedev, the professional boxer who turned professional in 2001 managed to knockout former WBO titleholder Enzo Maccarinelli, was reinstated as Champion by the WBA after Jones was stripped of his title later in the year by WBA for his failure to clear a drug test for this fight.
Known as 'El Felino', Jones was born in Panama and became the world champion as a 198 pound cruiserweight in 2013. In Panama, Guillermo won his first 21 bouts and then aligned with promoter Don King. Guillermo Jones managed to get a shot at WBA World Cruiserweight champion Firat Arslan on September 27, 2008 and won the WBA world title by 10th-round stoppage to become the oldest and the heaviest professional fighter from Panama to have attained a world championship. Jones then created controversy by going through a two year period of inactivity while remaining WBA world champion.
The WBA in August 2010 threatened to strip him of his belt unless he defended his world title and Jones decided to made his first defense of his world title against Valery Brudov in October 2010 and scored an 11th round stoppage in Panama City. Jones then defended his WBA world title against Mike Marrone on November 5, 2011 and retained his title via a TKO in the sixth round. After over a year of inactivity, Guillermo Jones was declared the champion in recess after he backed out of a title defense against Andres Taylor. Jones was stripped of his title in October 2013 after he failed a drug test for his WBA unification fight with Lebedev, with Lebedev being reinstated as full champion. The rematch ordered by the WBA brought the second doping instance of Guillermo Jones.