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Fifty years ago, Martina Navratilova left everything she knew in communist Czechoslovakia to start a new life in the US.

Amol Rajan Interviews: Martina Navratilova is on BBC 2 at 19:00 on 18 June, and on BBC iPlayer.

At 18, Andreeva is the youngest player to reach back-to-back women's singles quarter-finals at Roland Garros since Martina Hingis in 1998.

Up 6-0 5-0, Bouzas Maneiro was attempting to become the first woman to beat a top-10 player 6-0 6-0 at a Grand Slam since the 1989 US Open, when Martina Navratilova crushed world number seven Manuela Maleeva.

Tennis is built for rivalries, and it had several over the years, among others: Rod Laver and Ken Rosewall, Bjorn Borg and John McEnroe, and Martina Navratilova and Chris Evert.