The WTA will remain in the debt of the Williams sistas for all time.. In their absence the likes of Sharapova, Azarenka, Ivanovic, Errani, who are all fine players in their own right, would pass as the best, while in actuality, they are nowhere near as good.. The day these girls hang up their racquets, women's tennis will lose 2 of its most compelling champions.. The Goddess reigns..
Some athletes are happy to be the best in one sport - there are others who are not satisfied until they have played/worked different sports/roles at the highest level.. Whatever the Williams sistas choose to engage in, post-tennis, they will definitely be one thing - successful..