© Getty Images
Serena Williams has sent a message to her rivals after demolishing Jarmila Groth, conceding only three games.
Last year’s finalist came through in style, with a 6-2, 6-1 win over the Australian.
Although she dropped serve once in the second set, she was unchallenged throughout and cruised to victory in less than an hour.
The World No.2 will now face Italian Roberta Vinci, who beat Russian Anastasia Pavlyuchenkova 6-4, 7-6(6).