By Edgardo Rosani, notifight.com

Juan Carlos "El Cotón" Reveco (31-1, 17 KOs), the reigning world flyweight champion of the World Boxing Association (WBA), will defend his crown for the fifth time against Panama's Ricardo "The Mathematician" Nunez (26-3, 22 KOs) in a fight to be held on Saturday September 28 in Mendoza, Argentina. OR Promotions will stage the event, with the live telecast landing on TyCSports for Argentina, Latin America and the rest of the world. Nunez has won two fights in a row since last September's shootout loss to IBF champion Moruti Mthalane.