Angelique Kerber reaches US Open quarter-finals as she closes in on world number one spot
German wins a battle of grand slam champions as she powers her way into the last eight of the US Open
Angelique Kerber won a battle of grand slam champions when the second seed powered her way into the quarter-finals of the US Open on Sunday with a 6-3, 7-5 win over Petra Kvitova.
Williams, bidding for a record seventh US Open title, will now need to reach the final to have a chance of retaining top spot.
Kvitova, the Rio Olympic bronze medallist, offered more resistance in the second before meekly surrendering with a double fault on match point to gift Kerber a place in the quarter-finals.
Kerber’s victory set up an intriguing last eight clash with Italy’s Roberta Vinci, last year’s surprise runner-up advancing with a 7-6 (7-5), 6-2 win over Ukraine’s Lesia Tsurenko.