London: Agnieszka Radwanska booked her spot in the Wimbledon quarter-finals with a 7-5, 6-4 win over former world number one Jelena Jankovic on Monday.


Agnieszka Radwanska. Pic/AFP 

The Polish 13th seed defeated the Serbian 28th seed -- who knocked out defending champion Petra Kvitova in the third round -- in an hour and 43 minutes.