Serena Williams remains on track for a seventh Wimbledon title after seeing off Germany’s Annika Beck in the third round on middle Sunday.

The American top seed won 6-3 6-0 on a Centre Court filled with spectators enjoying a surprise extra day’s play following a week of rain.

Williams will next play Russian 13th seed Svetlana Kuznetsova, who beat Sloane Stephens 6-7 (1-7) 6-2 8-6 .

All the fourth-round matches will be played on Monday.

‘I know what it takes to win’ – Serena

Beck, who beat Britain’s Heather Watson in the first round, broke for a 2-1 lead against Williams but was then brushed aside.

Williams powered through 11 of the next 12 games and dropped only four points in an utterly dominant second set.

“It felt good,” said the world number one.

“I wasn’t sure what the stats were obviously, but on that last service game, I was thinking, ‘Have I lost on my first serve yet?’

“I wasn’t sure, but I just tried to stay focused. It gives me a lot of confidence. I know what it takes to win these tournaments. It’s just about now just doing it.

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