Mónica Silvina Acosta (born 22 February 1978), is an Argentine former professional boxer. Professional career. Ivanova turned professional in 2007 & compiled a record of 8–0–2 before defeating Darys Esther Pardo, to win the vacant WBC light-welterweight title. She defended the WBC title seven times before vacating it in 2013. She retired from the sport in 2014 .