By Jonah Sharf
On January 2, 1981, tennis great Martina Navratilova beat Chris Evert to win the first of her three Australian Open titles. Before the Australian Open win, Navratilova had already won two singles Wimbledon titles, but it was her first singles title at any of the other Grand Slams. In her career, Navritalova won an incredible 18 singles Grand Slam titles and 31 doubles Grand Slam titles. She is considered one of the greatest female tennis players ever, and is the only player in history to have held the world no. 1 ranking in doubles and singles for over 200 weeks (237 and 332, respectively).