MIAMI (Reuters) - World number one Serena Williams led a stampede of top seeds into the quarterfinals of the Sony Open on Monday but big sister and three-time Miami champion Venus could not join the party.
On a day that saw play interrupted by rain, it seemed nothing could stop the cream of women's tennis from rising to the top with Williams, a six-time Miami champion, Australian Open winner Li Na, third seed Agnieszka Radwanska, five-time runner-up Maria Sharapova and fifth seed Angelique Kerber all moving into the last eight.