Serena downs Venus as Vandeweghe sinks Safarova for Wimbledon quarters

US player Serena Williams (L) passes US player Venus Williams as they swap ends of the court during their women's singles fourth round match on day seven of the 2015 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on July 6, 2015.

Serena Williams stood three wins away from hoisting her fourth successive grand slam title by trumping elder sister Venus 6-4 6-3 to reach the quarter-finals of Wimbledon.

A contest featuring two women who between them have hoisted the Rosewater Dish 10 times should have been a blockbuster but turned out to be yet another awkward anti-climax - as has been the case in their previous 25 meetings.