Top seed and defending champion Serena Williams breezed into the Wimbledon fourth round on Saturday with a 6-2 6-0 win over Japanese 42-year-old Kimiko Date-Krumm.

Williams will face German 23rd seed Sabine Lisicki on Monday for a place in the quarter-finals.

Saturday’s win was the 600th of Williams’s career as the American continued her gentle cruise towards a sixth Wimbledon title and 17th Grand Slam title.