Tennis player Nadia Petrova from Russia hits a ball during her semifinal match against Na Li from China at the German Open in Berlin, Saturday, May 13, 2006. Petrova won in two
Nadia Petrova: Tennis Player, Biography, Career Info, Achievements
Williams rallies to knock out Petrova - Taipei Times
Russian tennis player Nadia Petrova, 1990s Stock Photo - Alamy
Williams Shakes Off Rust, Powers Herself to the Fourth Round - The New York Times
Nadia Petrova - Wikipedia
Russian tennis player Petrova announces retirement - India Today