Serena knocked out of Miami Open by Kuznetsova

Russian 15th seed Svetlana Kuznetsova  has ended  World Number One Serena Williams’ bid for a ninth title in Miami.

The Russian defeated the 34-year-old American  6-7 (3-7) 6-1 6-2  in the fourth round, Serena’s  earliest exit from the tournament.

Williams, a 21-time Grand Slam champion, was attempting to win her ninth title in Miami.

Poland’s third seed Agnieszka Radwanska was beaten 2-6 6-4 6-2 by 19th seed Timea Bacsinszky of Switzerland.

Earlier on Monday, British number two Heather Watson was defeated 6-3 6-4 by Romania’s Simona Halep.

There was also some upset in the men’s matches with Spanish Roberto Bautista eliminating French manJo-Wilfried Tsonga.