Rossana de los Ríos born September 16, 1975 is a retired professional tennis player from Paraguay. She was born in the Paraguayan capital, Asunción, and now lives in Miami, USA, with her 15-year-old daughter Ana Paula Neffa de los Ríos and her husband Gustavo Neffa, a retired Paraguayan football (soccer) player who played for the Boca Juniors. Rossana achieved a career high singles ranking of No. 51 in September 2001, and No. 52 in doubles on the Sony Ericsson WTA Tour. de los Ríos played doubles with Grand Slam champions such as Maria Sharapova, Svetlana Kuznetsova, Arantxa Sánchez Vicario, as well as Jelena Janković and Dinara Safina. Rossana is also a former world number one Junior player, having won the 1992 Roland Garros Juniors event. She was the only female tennis representative for Paraguay in the 1992 and 2000 Olympic Games.