Bhupathi into doubles semis

India's Mahesh Bhupathi and his partner Mark Knowles went through Thursday to the last four of the season-ending ATP World Tour Finals without a perfect record after losing their final group match.

Third seeds Bhupathi and his Bahamian doubles partner lost 6-4, 7-6 (11/9) to top seeds Daniel Nestor of Canada and Nenad Zimonjic of Serbia at London's O2 Arena in their Group A match.

Bhupathi and Knowles had already qualified for the semi-finals of the season-ending tournament having won their first two games. AFP