It’s a fantastic weekend for country club sports gambling. The US Open betting odds are already into full swing but now the marquee event of the Tennis Grand Slam is ready to commence.

Following the announcement that defending champion Rafael Nadal is out of this year’s tournament, the 2009 Wimbledon odds reacted. Legendary Roger Federer is now the overwhelming favorite at -150, making Tiger Woods opening odds of 3-2 at the US Open look like a long shot.

Andre Murray at +185 is given the best chance to unseat Federer at +185 according to BetUs. Oddsmakers don’t give the other contenders much of a chance as Novak Djokovic has the third shortest odds at +700.

The online casinos agree that one of the Williams sisters is likely to win. Serena is +275, a slight favorite ahead of sister Venus at +275. However, the betting odds do agree that the women’s bracket will be more competitive than the men’s.

Maria Sharapova at +600 and Dinara Safina at +700 are also given reasonable shots to win.  The NFL preseason spreads are still a month or so away but gamblers can enjoy strawberries, potatoes, bangers, cheddar cheese and gin in winning tennis bets.