Radwanska beats Li in Wimbledon quarter-finals

Agnieszka Radwanska downed China's Li Na in an epic Wimbledon quarter-final on Tuesday between the top two seeds to reach the last eight.

The Polish fourth seed, last year's beaten finalist, beat the sixth seed 7-6 (7/5), 4-6, 6-2 in a two-hour, 43 minute contest on Centre Court.

Radwanska plays German 23rd seed Sabine Lisicki, the conqueror of defending champion Serana Williams in the fourth round, in the semi-finals on Thursday.