SERBIA'S Jelena Jankovic crushed a leg-weary Caroline Wozniacki 6-2, 6-2 to reach the semi-finals of the WTA Championships in Doha yesterday, while American Venus William

Defending champion Venus Williams made the semi-finals of the Sony Ericsson Championships without hitting a ball, with Jelena Jankovic and Caroline Wozniacki also in the last four.

Arnaud Clement shocked No.1 seed and fellow Frenchman Jo-Wilfried Tsonga 5-7 6-4 7-6 (10/8) to reach the semi-finals of the Grand Prix de Lyon.

No.1 seed Marin Cilic has eased into the semi-finals of the Austria Tennis Trophy 6-1 6-4 over former champion Feliciano Lopez.