Roger Federer begins his quest for a sixth US Open title tonight against Brian Dabul.

You can bet live in-play on the US Open at bet365

Federer had the perfect preparation for the US Open winning the Cincinnati title and the Swiss looks relaxed going into the year's final grand slam. He's now signed Paul Annacone as a full-time coach to start in November and everything seems fairly rosy in the Federer camp once more.

He's also been handed a dream draw with Rafael Nadal, Andy Murray and Tomas Berdych safely in the opposite half and Novak Djokovic (who he's beaten multiple times in the latter stages at Flushing Meadows) seeded to face him in the semis. 

Dabul was rated extremely highly as a junior but his lack of height has proved a hindrance at the highest level and his best ranking has been 82. He's had plenty of success in hard court challengers this summer but his only venture onto the main tour led to a round one defeat in Washington. He has only won 13 career matches on the ATP Tour.  

You can watch ATP Tour tennis live for free at bet365. To watch, simply follow these 3 simple steps:

1. Go to bet365 and sign-up or register (it's free)
2. Click on Sports > Live Streaming > Tennis
3. Watch ATP Tour tennis for free