Graf–Navratilova rivalry
The Graf–Navratilova rivalry was a tennis rivalry between Steffi Graf and Martina Navratilova, widely regarded as two of the greatest tennis players of all time. They met 18 times during their careers, and their head-to-head is even at 9–9, with Graf having a 4–2 record in major finals but Navratilova having a 5–4 record in overall major matches (winning their last major meeting despite being 34 at the time).