The ATP Masters Series rolls into Madrid this week and there are plenty of betting prospects available at totesport.

As you’d expect, the main protagonists in the betting are the top four in the world. World number one Rafa Nadal is shading favouritism at 15/8 from US Open winner Roger Federer who is available at 2/1. The other two quarters of the draw are made up from world number three Novak Djokovic and our very own Andy Murray, available at 5/1 and 13/2 respectively.

It’s the latter of this quartet that we’re focusing in Madrid this week. The Scotsman’s late summer form was exceptional and we expect him to carry this forward onto the indoor hard-court surface he loves.

Of all the seeded players in Murray’s quarter of the draw he has an equal or better head to head record. In fact, only one seeded player in his half of the draw has a better head to head record and that’s last years Madrid Masters winner David Nalbandian.

There’s every chance Murray could meet Roger Federer in the semi-finals in a rematch of their US Open Final in September. We think Murray could get the better of Federer this time around.

Totesport will be betting in-running on all live tennis matches.

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With nine of the top 10 ranked men taking part in Beijing the field for this year’s Olympics tennis is as formidable as it has ever been.

Rafael Nadal’s extraordinary efforts this season see him overtake Roger Federer as world number one – and that is sure to add extra spice to the proceedings as the freshly disposed Swiss stroke-maker seeks to avenge defeats at Wimbledon and Roland Garros.

Nadal, who has claimed seven titles this season and has only been beaten twice in his last nine events, is rightly installed as totesport’s jolly.

But favourite backers may want to take note that since 1988 the men’s singles event has never been won by a player ranked in the first five.

Federer is second in the betting but his recent Masters Series defeat against giant Ivo Karlovic has led to many experts questioning his powers.

But let´s not forget that he came within a whisker of winning this year’s Wimbledon and he has after all won a staggering 12 Grand Slam titles.

Classy Serbian Novak Djokovic will be a warm order due to his excellent results on this year’s Olympic surface - Deco Turf II.

But the reigning Australian Open champ is probably reeling from his recent Cincinnati Masters Series final upset to Scot Andy Murray.

For our money we make the in form Dunblane man the value bet of the men’s singles.

More Beijing hopefuls come in the form of James Blake, David Nalbandian, David Ferrer and Nikolay Davydenko.

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Take Roger Federer to bounce back from recent disappointment in Canada by winning this week’s Masters Series event in Cincinnati.

The Swiss suffered a shock second round defeat to Gilles Simon in Toronto but we’re willing to overlook that loss as a complete one-off.

It was Federer’s first outing since his momentous Wimbledon final defeat to Rafael Nadal so we can excuse him lacking match sharpness.

A week on in Cincinnati it should be a different story for the defending champion (he beat James Blake in a straight sets final in 2007 and also won this event in 2005). Federer has been drawn in a very weak looking first quarter that features a much faded Andy Roddick.

Rafael Nadal is again Federer’s main challenger but with an energy sapping run all the way to the Toronto final against Nicolas Kiefer it is asking a lot of the Spaniard.

Novak Djokovic would appear another credible candidate but he looked lacklustre in losing to Andy Murray in Toronto quarters and is probably best overlooked this time.

In terms of outsiders Scotland’s Andy Murray makes appeal. Murray famously beat Federer here in 2006 and he has been drawn in a very winnable second quarter of the draw.

His form in Canada last week was excellent – reaching the semis before falling to Nadal.

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With Rafael Nadal now crowned Wimbledon Champion the Spaniard’s sights now turn to Flushing Meadows, New York, the famous home of the US Open.

Yet again the man he will be looking to dislodge is Roger Federer who is gunning for his fifth straight US Open title.

Totesport go 9/4 that Rafa will do it - a tasty bet indeed when you consider the massive psychological boost that thrilling five-set win over the Swiss has given him. Federer is 11/10.

Nadal’s best effort here was a QF in 2006 and he no doubt disappointed many backers in losing to David Ferrer in the 4th round of 2007, but a year on and a year considerably wiser and richer we expect a far bolder show.

Already the master of clay and now the green stuff, Nadal has the game to prosper on hard-courts make no mistake about that. He’s won Masters Series events in Indian Wells and Canada and is learning all the time.

It wasn’t so long ago that many said he didn’t have the game for grass…

Third favourite is Novak Djokovic, the man who lost in straight sets to Federer in last year’s final. But that was then. The Serb has since vanquished that painful memory by beating Federer in the Australian Open final in January.

At 11/4 he could be the value bet of the main runners.

Of the rags, only Marat Safin makes some appeal. 66/1 for a former winner and this year’s Wimbledon semi-finalist is worth a small interest.

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