Sam Querrey, Richard Gasquet and Jurgen Melzer all begin their campaigns on day one of the Rogers Cup.

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Gasquet opens play on centre and the recent Gstaad finalist should have too much for qualifier Sergiy Stakhovsky.

Match of the day is likely to be Gilles Simon against Mikhail Youzhny. Youzhny is competing for the first time on the North American hard courts this summer and he could have a tricky time against Simon who knocked out Andy Roddick in Washington last week.

Los Angeles champion Sam Querrey is in action against qualifier Michael Russell. Querrey will have an eye on a potential third round clash with Rafael Nadal and will be hoping to bounce back from an early loss in Washington last week.

French Open semi-finalist Jurgen Melzer hits the hard courts for the first time this summer. Melzer has been grinding it out on clay with some success over the past month, making the Hamburg final but can he translate that form onto the hard.

Ernests Gulbis could play Robin Soderling in round two but first of all the mercurial Latvian will have to get through a tough clash with Thomaz Bellucci this afternoon.

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