Expect the unexpected at this year's US Open!

With Serena Williams vying to safeguard her World No 1 ranking and Djokovic fighting off a wrist injury, expect to see a few surprises at the fourth and final Grand Slam of the year IMAGE: Serena......

Grand Slam question: Who can challenge Serena?

Serena Williams of the United States hits a ball during a practice session prior to the 2015 U.S. Open at USTA Billie Jean King National Tennis Center. Photograph: Chris Trotman/Getty Images for......

Serena battles cough as Williams sisters see US through in Fed Cup

Serena Williams, eight,of the US greets Maria Irigoyen of Argentina after their Fed Cup World Group II match in Buenos Aires. Photograph: Enrique Marcarian/Reuters A persistent, nagging cough......

How the Williams sisters influence emerging tennis talent from US

The legacy of the championship years of the Williams sisters is beginning to emerge, with 10 American women now ranked in the top 100 and members of the younger set beginning to knock on the door......

Serena clinches Stanford title

Serena Williams sounded an ominous warning to her rivals that she will be a genuine contender at the US Open after winning the Stanford Classic on Sunday in her third tournament back from injury.......