Andy Roddick resumed the hunt for a place in the eight-man ATP season final with a 7-5, 7-6(6) defeat of fellow American Sam Querrey to move into the second round at the Swiss Indoors Wednesday.

Roddick stands provisional eighth in the field for the World Tour Final in London from November 21 with three spots remaining open after qualification by Rafael Nadal, Roger Federer, Basel holder Novak Djokovic, Andy Murray and Robin Soderling.

A handful of candidates are still in the hunt including Roddick, who injured his knee last month in Shanghai and was playing for the first time in a fortnight.

Roddick hammered his trademark aces with abandon, toting up 16 in just over 90 minutes of battle.

Querrey, another big hitter, managed 16 but put a backhand into the net on Roddick's first match point to make an early exit on his debut appearance.

The victory ran Roddick's record in the series to 5-2 and annulled the sting of losses in two of their three previous meetings.

The results:

At Basel (Swiss Indoors): First round: Andy Roddick bt Sam Querrey 7-5, 7-6(6); Paul-Henri Mathieu bt Florian Mayer 6-3, 6-3; Jarkko Nieminen bt Daniel Brands 6-3, 6-2; Radek Stepanek bt Thiemo de Bakker 6-3, 7-6(5); Marin Cilic bt Marco Chiudinelli 6-3, 6-3; David Nalbandian bt Jan Hajek 6-3, 6-4; Richard Gasquet bt Lu Yen-Hsun 6-3, 6-1; Novak Djokovic bt Ernests Gulbis 6-4, 6-2.

At Valencia (Valencia Open): Second round: Juan Monaco bt Andy Murray 6-2, 3-6, 6-2.

First round: Marcel Granollers bt Benoit Paire 6-2, 6-4; Pablo Cuevas bt Albert Ramos 6-3, 6-4; Gael Monfils bt Eduardo Schwank 6-3, 6-3; Robin Soderling bt Albert Montanes 6-1, 6-4; David Ferrer bt Guillermo Garcia-Lopez 6-7(3), 6-3, 6-3; Pablo Andujar bt Dmitry Tursunov 6-4, 3-6, 1-1 (retd.) .

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