The American pays tribute to a hero and a major influence.
Roger Federer reacts to Serena Williams' painful Wimbledon exit.
The German won her Wimbledon opener in impressive fashion.
Controversial Frenchman penalized for lack of effort during first-round Wimbledon loss.
Samantha Stosur will make her record fifth Olympic appearance.
Recovering from injuries, Simona Halep and Stan Wawrinka pull out of Tokyo Olympics.
Federer and Serena on Centre, and all kinds of goodness elsewhere, on Day 2 of Wimbledon.
