Two-time Wimbledon champion Petra Kvitova will play at this summer’s Hopman Cup, but 22-time grand slam winner Serena Williams won’t be appearing at the mixed-teams tennis event.

Kvitova will partner Adam Pavlasek for the Czech Republic, while Rio Olympic Games gold medallist Jack Sock will team with Coco Vandeweghe to represent America.

Swiss superstar Roger Federer confirmed he would play at the Hopman Cup in July, and organisers are hopeful he’ll recover from his knee injury in time.