Serena Williams’ final US Open has plenty of potential contenders | Tumaini Carayol

Beyond the spectacle of a legend's retirement, both the men's and women's draws at Flushing Meadows are wide open

As Serena Williams lined up all of her ducks in a row for what is likely to be the final tournament of her career at the US Open, one particular question has lingered for weeks - would she reunite with her sister, Venus, in one final doubles competition for a fitting departure?

On Saturday the answer came as the Williams sisters received a wildcard into the doubles draw. Both of their singles careers have naturally received far greater attention but their doubles achievements are astounding, their 14 grand slam titles placing them second in the Open era for women's doubles grand slam titles. Their 14-0 record in grand slam finals is peerless.