Serena on course to be best ever, says Venus Williams

Venus Williams believes her “ultimate champion” sister Serena is on course to become the greatest player in the history of women’s tennis.

Serena bludgeoned mercilessly past older sister Venus to reach her 11th Wimbledon quarter-final yesterday, as the two five-time champions locked horns for the first time in six years at SW19.

Reigning Australian and French Open champion Serena edged a step closer to the calendar grand slam by seeing off her in-form 35-year-old sister, to book a last-eight battle with Victoria Azarena.