Serena Williams knocked out of US Open

23-time Grand Slam champion Serena Williams may have just played her last match, in a major tennis tournament.

She's been knocked out of the US Open in the third round by Australia's Ajla Tomljanovic.

The 40-year-old's hinted at retirement - announcing last month she was 'evolving away' from the sport to focus on her family and business.

This evening, Rafa Nadal plays the experienced Richard Gasquet for a place in the last-16.

While third seed Carlos Alcaraz faces Jenson Brooksby.

Former Wimbledon champions Petra Kvitova and Garbine Muguruza meet in the women’s third round.

And Australian Open finalist Danielle Collins goes up against Alize Cornet.