Groups set for ATP World Tour finals

LONDON, Nov. 18 (UPI) -- Top-ranked Roger Federer will battle local favorite Andy Murray in his four-player group at next week's 2009 ATP World Tour finals.

The draw for the season-ending invitations-only event was announced Wednesday in London, where the tournament will be contested.

Federer owns the No. 1 seed and heads Group A, which includes the fourth-seeded Murray, No. 5 Juan Martin del Potro and seventh-seeded Fernando Verdasco.

Group B is topped by world No. 2 Rafael Nadal and third-seeded Novak Djokovic, the defending champion and hottest player on the tour. Sixth-seeded Nikolay Davydenko and eighth-seeded Robin Soderling, who replaced world No. 6 Andy Roddick in the draw, complete Group B.

The tournament alternate is Jo-Wilfried Tsonga.

The schedule calls for round-robin play in the group, with the top two finishers in each group advancing to the semifinals.