Between 1987 and 1990, Steffi Graf largely held off Navratilova's challenge for the crown.

The former tennis star Martina Navratilova has been forced to abandon attempts to climb Africa's highest mountain after suffering from altitude sickness.

The California courts have a reputation for playing quite slow—in 2006, Martina Navratilova griped, “you hit a great volley, and the person’s got five minutes to run it down and hit it by you.”