Martina Navratilova Signed Photograph comes professionally framed with a certificate of authenticity on the back. Martina Navratilova is a Czech-American former professional tennis player and coach. Widely considered among the greatest female tennis players of all time, Navratilova won 18 Grand Slam singles titles, 31 major women’s doubles titles, and 10 major mixed doubles titles, for a combined total of 59 major titles, marking the Open Era record for the most Grand Slam titles won by a single player.