Roger Federer of Switzerland and Serena Williams of the USA leave the court after playing in the mixed doubles match. EPA
Roger Federer of Switzerland and Serena Williams of the USA take a selfie on court after playing in the mixed doubles match alongside Belinda Bencic of Switzerland and Frances Tiafoe of the USA on Day 4 of the Hopman Cup in Perth. EPA
Roger Federer of Switzerland is hit on the ear by a ball from Frances Tiafoe of the USA. EPA
Serena Williams of the USA in action. EPA
Belinda Bencic of Switzerland celebrates winning a set. EPA
Serena Williams of the USA in action. EPA
Serena Williams, left, (L) of the USA and Roger Federer of Switzerland in action during the mixed doubles match. EPA
Serena Williams of the USA and Roger Federer of Switzerland in action during the mixed doubles match. EPA
Roger Federer and Belinda Bencic of Switzerland celebrate after beating the USA 4-2, 4-3 in the mixed doubles match. EPA
Roger Federer and Belinda Bencic of Switzerland celebrate their win over Frances Tiafoe and Serena Williams of the US. EPA
Roger Federer of Switzerland and Serena Williams of the USA leave the court after playing in the mixed doubles match. EPA
Roger Federer of Switzerland and Serena Williams of the USA take a selfie on court after playing in the mixed doubles match alongside Belinda Bencic of Switzerland and Frances Tiafoe of the USA on Day 4 of the Hopman Cup in Perth. EPA
Roger Federer of Switzerland is hit on the ear by a ball from Frances Tiafoe of the USA. EPA
Serena Williams of the USA in action. EPA
Belinda Bencic of Switzerland celebrates winning a set. EPA
Serena Williams of the USA in action. EPA
Serena Williams, left, (L) of the USA and Roger Federer of Switzerland in action during the mixed doubles match. EPA
Serena Williams of the USA and Roger Federer of Switzerland in action during the mixed doubles match. EPA
Roger Federer and Belinda Bencic of Switzerland celebrate after beating the USA 4-2, 4-3 in the mixed doubles match. EPA
Roger Federer and Belinda Bencic of Switzerland celebrate their win over Frances Tiafoe and Serena Williams of the US. EPA
Roger Federer of Switzerland and Serena Williams of the USA leave the court after playing in the mixed doubles match. EPA
