The US Open, the fourth and final grand slam on the tennis calendar, begins at the end of this month in New York.

The news that 23-time major winner Serena Williams will retire after the US Open will dominate the build-up to the tournament.

Williams, 40, has finally called it quits, admitting that the decision was motivated by her desire to expand her family.

"These days, if I have to choose between building my tennis résumé and building my family," she says.

Notably, Raducanu defeated Williams 6-4, 6-0 in their Cincinnati Open match, with the Briton making only one unforced error.

In the early rounds, play will begin on the outer court at 3pm BST, and on the show courts at 4pm. Expect the action to continue late into the night.

Emma Raducanu defends her women's singles title, which she won in extraordinary circumstances in her "Fairytale of New York" victory last year.

The news that 23-time major winner Serena Williams will retire after the US Open will dominate the build-up to the tournament.

Notably, Raducanu defeated Williams 6-4, 6-0 in their Cincinnati Open match, with the Briton making only one unforced error.

Williams, 40, has finally called it quits, admitting that the decision was motivated by her desire to expand her family.