Serena Williams of the US (L) touches hands with her sister Venus Williams during their women's doubles match against Sara Errani and Roberta Vinci of Italy on the nineth day of the Australian Open tennis tournament in Melbourne on January 22, 2013.
Now that the careers of Serena and Venus Williams have possibly peaked – just ask Sloane Stephens, the American teen who just knocked Serena out of the Australian Open – is this the time to look back? Serena, 31, will be remembered as the more accomplished player, with 15 Grand Slams to her name thus far. She’s been world No. 1 five times. Older sis Venus, 32, has so far won seven Slams and been ranked No. 1 on three occasions. They’ve played against each other 23 times, with Serena holding a 13-10 advantage. What’s more, they’re the only women in the open era to have played against one another in four consecutive Grand Slam finals; overall, Serena holds a 6-2 lead in Slam finals. Perhaps no siblings have dominated their sport, for so long, as the Williams sisters.