Tennis: Radwanska into Wimbledon fourth round

Polish fourth seed Agnieszka Radwanska moved into the last 16 at Wimbledon with a 7-5, 4-6, 6-3 win over America teenager Madison Keys on Saturday.

Radwanska, beaten by Serena Williams in last year's final, will play Bulgaria's Tsvetana Pironkova, a Wimbledon semi-finalist in 2010, for a place in the quarter-finals.

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