US Open betting odds - Nadal, Murray and Roddick all in action

Flushing Meadows, New York - There's a great night of tennis ahead of us on Friday, as the top players look to progress further in the last Grand Slam of the year. There were no major casualties in the opening matches of the men's tournament, and most of the top players progressed with little fuss.

First up today is Juan Martin del Potro, who takes on the world no. 104 Diego Junqueira. Del Potro should come through this match easily, and the former champion here is a general 1/100 to see off his fellow Argentine.

One of the closest matches taking place today is between David Nalbandian and Ivan Ljubicic. Nalbandian is slight favourite to win, priced at 4/5 with Boylesports, while Ljubicic is best priced at 11/10 with bet365. The match is the third on court 13.

Second seed for the tournament Rafael Nadal will take on Nicolas Mahut on Arthur Ashe today. Mahut could give Nadal something to think about, but the 2010 champion is expected to come through, priced at 1/25 with Betfred. Mahut is available at 20/1.

Andy Murray could be tested by his opponent Robin Haase tonight, with the Dutchman having won their only previous encounter in 2008. Murray came into this tournament on a high, having won the Cincinnati Masters and become only the second man to beat world no. 1 Novak Djokovic all year (although Djokovic retired). The Scot was impressive when seeing off Sondev Devvarman in his opening round, but he will need to improve today. However, bookmakers believe he will do, and he is a 1/11 shot to come through his match tonight. Haase is a best priced 8/1 with bet365 to upset Murray.

Home favourite Andy Roddick is also in action on Arthur Ashe court tonight, where he takes on Jack Sock. Roddick is expected to coast through the match, and is a best priced 1/14 with Sportingbet to make it through. Sock is 12/1 with bet365 to cause an upset.

Yesterday saw Novak Djokovic play his second match, and he was immensely impressive, seeing off Calos Berlocq 6-0, 6-0, 6-2. Djokovic has already won the Australian Open and Wimbledon this year, and is the general 5/4 favourite to add this tournament to his record haul. Nadal and Murray are disputing second favouritism, and both players are best priced at 5/1. Roger Federer is a best priced 6/1 with Coral to bounce back to form.

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