Andy Murray wins opening match at ATP finals

LONDON (AP) - Novak Djokovic and Andy Murray won their opening matches Monday at the ATP finals, setting up a showdown between two of the top three players in the world.

The top-ranked Djokovic beat Jo-Wilfried Tsonga 7-6 (4), 6-3 in Group A, hours after third-ranked Murray rallied to defeat Tomas Berdych 3-6, 6-3, 6-4. Djokovic and Murray will play Wednesday.

The ATP finals is the season-ending tournament for the top eight players in the world. Fourth-ranked Rafael Nadal, however, pulled out because of injury.

Group B, which includes six-time champion Roger Federer, will play Tuesday at the O2 Arena.