British number ones Johanna Konta and Kyle Edmund are both in action and you can follow their matches with us on the live text, as well as commentary from Radio 5 live sports extra online.
Rafael Nadal and Novak Djokovic are both playing too.
Kiki Bertens, Serena Williams, Caroline Wozniacki, Stan Wawrinka and Dominic Thiem are among those in action elsewhere.
Join us from around 10:00 BST as Konta kicks things off. See ya!