• Cincinnati Masters

Roddick crashes out as Querrey sets up Murray clash

Andy Roddick dropped his serve twice after suffering back spasms © PA Photos

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Andy Roddick's US Open preparations suffered a blow after he was dumped out in the first round of the Cincinnati Masters.

The 2003 US Open champion narrowly lost the opening set on a tiebreak to France's Jeremy Chardy, but struggled to recover after suffering back spasms early in the second.

Returning to the court after receiving treatment, Roddick dropped his serve twice as he bowed out with a 7-6(4) 6-3 defeat as lucky loser Chardy progressed to a second-round clash with Denis Istomin.

World No. 4 Andy Murray will face Sam Querrey in his Ohio opener after the American battled back from a set down to defeat Jurgen Melzer.

Murray, who pulled out of last week's Rogers Cup with a knee injury, will play in Cincinnati this week before heading to New York to put the finishing touches on his preparations for the final major of the year, which begins on August 27.

Querrey, meanwhile, was broken twice by Melzer as he surrendered the opening set, but roared back to claim a 4-6 6-2 6-4 victory to progress to the second round.

No. 10 seed Mardy Fish barely broke into a sweat as he swept aside Feliciano Lopez 6-2 6-3 in their first-round clash. It was a similar story for Tomas Berdych who required just 86 minutes to progress past Yen-Hsun Lu into the second round.

Argentina's David Nalbandian lost his rag as he was beaten 6-7(0) 7-6(4) 6-3 by Tommy Haas. Nalbandian, who was defaulted in the Queen's final for injuring a line judge, had match point in the second set, but lost his temper after incorrectly challenging a line call. Haas will now face Olympic bronze medallist Juan Martin Del Potro in the second round.

Meanwhile, Australia's Bernard Tomic set up a potential clash with world No. 1 Roger Federer after defeating home favourite Brian Baker 6-4 6-3. Tomic now awaits the winner of the second round encounter between Federer and Alex Bogomolov Jr, who beat Jarkko Nieminen 6-4 6-3.

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