Radwanska outlasts Li Na in epic Wimbledon clash
Pole will face Serena Williams' conqueror Lisicki in semis after battling past Chinese star in nearly three-hour marathon at Wimbledon

Poland's Agnieszka Radwanska beat China's Li Na yesterday to set up a Wimbledon semi-final against Sabine Lisicki, the slayer of Serena Williams.
Fourth-seeded Radwanska, the highest seed left following the exit of defending champion Williams, Victoria Azarenka and Maria Sharapova, beat Li, the sixth seed, 7-6 (7/5), 4-6, 6-2 in a gripping two-hour, 43 minute contest which was completed under the Centre Court roof.
Radwanska, the runner-up in 2012, took victory on an eighth match point.
The 24-year-old Pole, who had gone into the quarter-final with a 4-6 losing record against Li, also overcame an injury scare when she needed her right thigh tightly-strapped at the start of the deciding set.
"Li played unbelievable tennis. I was just happy to get through after struggling in the final set," said Radwanska who had also needed three sets to beat Tsvetana Pironkova in the fourth round. "I have played so much tennis in the last few days, that's why I have the problem."