World no. 1 Novak Djokovic of Serbia defeated his fellow countryman Victor Troicki 6-3 6-4, advances to round four of the Sony Ericsson Open in Miami.
Former no.1, Serena Williams is ranked 29th, up from her previous standing of 175th in July, it was a dramatic improvement after she returned to the tour following nearly a year absence due to health problems.
The ninth seed Marion Bartoli of France beats defending champion Serena Williams 6-3, 7-6 (6) at Wimbledon on Monday, June 27 while her sister Venus has lost to 32nd-seeded Tsvetana Pironkova 6-2, 6-3.
Serena Williams trounced the no. 26 seed Maria Kirilenko 6-3, 6-2 at Wimbledon.
Serena Williams, the defending champion was originally seeded no. 8 but the withdrawal of second-seeded Kim Clijsters due to injury moved the rest of the field up one spot.
The United States failed to win against Germany and was eliminated from the top tier of the Fed Cup for the first time.