Rossana Neffa de los Rios (born 16 September 1975) is a former tennis player from Paraguay.

She was born in the Paraguayan capital, Asunción,[1] and now resides in Miami, Florida, with her daughter Ana Paula Neffa de los Ríos,[2] who is also a professional tennis player, and her husband Gustavo Neffa, a retired Paraguayan Association football player who played for Boca Juniors.

She played doubles with Grand Slam champions such as Maria Sharapova, Svetlana Kuznetsova, Arantxa Sánchez Vicario, as well as Jelena Janković and Dinara Safina.

The following year, she won her third title, in Santa Maria Capua Vetere in October, where she beat Silvia Farina Elia.

In June, Rossana easily qualified for the main draw of the French Open, losing just eleven games in three matches.

De los Ríos finished the year with her return to the ITF circuit which saw them win 12 of her next 17 matches, including the finals at Miramar and Pittsburgh.

In the first round, she defeated Cristina Torrens Valero 6–1, 6–0, and then recorded her greatest victory to date, with a three-set win over world No.

The Tribune, Chandigarh, India - Sport:I knew that I could beat Monica, but when I was near victory I was thinking a lot of things, and I had to concentrate very hard to win.

Two months later, Rossana recorded her best WTA Tour appearance to date, advancing to the semifinals of Salvador, Bahia (Tier II) including another win over Silvia Farina Elia.

She finished the year with another semifinal in Pattaya City (Tier V), losing to Patty Schnyder in three sets.

Won just three of her next 13 matches until the French Open in June, where she recorded a third-round appearance but fell to Elena Dementieva.

In September, Rossana reached the quarterfinals of Bali (Tier III) by upsetting top seed Tamarine Tanasugarn.

In Bratislava (Tier V), Rossana stunned Francesca Schiavone in straight sets and reached the quarterfinals.

She did not reach the quarterfinals or better in any WTA Tour tournament, but on the ITF Circuit she did manage to advance to the semifinals of Troy in October.

She won two matches in qualifying for the French Open in just her second tournament of the year, but lost in the final round.

The following week she made the semifinals of Allentown on the ITF Circuit, as well as the final of College Park in July.

Although she won just five of her first nine matches, it was Indian Harbour Beach in May which saw Rossana reach her first ITF final since College Park in 2004.

She reached the quarterfinals in Lexington, Kentucky later in the month, but lost to Stéphanie Dubois, despite leading 4–2 in the final set.

Two weeks later in December, de los Ríos claimed her first ITF title since 1999, winning the Santaluz Club Open tournament in San Diego, United States,[9] beating sixth seed Ivana Abramović 6–0, 6–2 in the final.

In her next tournament, she reached the Semifinals of $25k Palm Desert, beating top seed Edina Gallovits 6–2, 6–1.

As the second seed, she won five matches in the process and lost just one set, beating former top-ten player Brenda Schultz-McCarthy in the final.

Fresh from victory, Rossana quickly flew to Paris for the first time since 2004 to compete in the qualification event of Roland Garros.

Rossana then played in Rio de Janeiro for the Pan American Games, representing Paraguay.

As the fourth seed, she won her first round easily, but lost in the second to Yamile Fors of Cuba, in three close sets.

En route to the title in Albuquerque, Rossana won five matches- three of them in three sets- resulting in her ranking rising from 136 to No.

In February, Rossana played her first WTA Tour main-draw match for the year in Viña del Mar.

She also reached the second round in Bogotá and Miami, which resulted in her breaking back inside the top 100 for the first time since 2003.

[3] De los Ríos and Neffa have a daughter named Ana Paula,[1] who was born on 17 January 1997.

[3] De los Ríos stopped playing for five years to dedicate time to her daughter, returning to tennis in 2000.

In 2002, de los Ríos commented about being one of the few mothers on the WTA Tour:Being a person who gives birth was more important than being tennis player.