Vandeweghe, a California native and winner of two career WTA titles, reached the Mubadala Silicon Valley Classic final in both 2012 and 2017. In 2017, she rose to a career-high singles ranking of No. 10 following semifinal appearances at the Australian Open and US Open, and a quarterfinal appearance at Wimbledon.

Mattek-Sands comes to San Jose as one of the most accomplished doubles players in United States history. She has won 30 career WTA doubles titles including five Grand Slams doubles crowns, three Grand Slam mixed doubles titles and the 2016 Olympic gold medal in mixed doubles. A former doubles World No. 1, she also reached a career-high No. 30 singles ranking in 2011.

Kasatkina enters the Mubadala Silicon Valley Classic as the top-ranked player from Russia and is a two-time singles winner on the WTA tour.

The addition of Vandeweghe, Mattek-Sands and Kasatkina bolster a player field that already includes seven-time Grand Slam champion Venus Williams, two-time Grand Slam champion Garbiñe Muguruza, two-time Australian Open champion Victoria Azarenka and French Open semifinalist Amanda Anisimova.

Other featured players coming to San José include defending champion Mihaela Buzarnescu, 2018 finalist Maria Sakkari, 2017 French Open champion Jelena Ostapenko, World No. 7 and Wimbledon semifinalist Elina Svitolina, World No. 10 Aryna Sabalenka, Belgian star Elise Mertens and Australian Open semifinalist Danielle Collins.

In addition to the impressive list of WTA players set to compete in San José, the Mubadala Silicon Valley Classic will be hosting four former ATP stars as part of the Invesco Series on Saturday, August 3 following the evening women’s semifinal match. 

The Invesco Series is a legends tour event that features three one-set matches consisting of two semifinals and one final. The line-up for the San José event is one of the best of the legend’s season and includes 2003 US Open champion Andy Roddick, 1989 French Open champion Michael Chang, 10-time ATP tour winner James Blake and 11-time tour singles champion Mark Philippoussis.

Now entering its 49th year, the Mubadala Silicon Valley Classic is a weeklong WTA Premier event bringing the worlds of tennis and technology together in a festival of sports and entertainment. Highlighting the best the region has to offer, the tournament showcases locally sourced cuisine, fine wine and cheese selections, interactive fan exhibitions, premier hospitality options, and of course, incredible tennis action.

Featuring a 28-player singles draw as well as a 16-team doubles draw the tournament boasts $876,183 in prize money and serves as the opening women’s event of the US Open Series.