No star power at Davis Cup

Djokovic, Murray and Nadal all have other agendas

The Davis Cup quarterfinals take place this weekend - minus the superstar drawing power of Novak Djokovic and Andy Murray and overshadowed by Rafael Nadal's last-ditch effort to get to the Rio Olympics.

World No 1 Djokovic and newly crowned Wimbledon champion Murray were expected to play in the quarterfinal between Serbia and defending champion Britain, but Djokovic pulled out of the tie after his third-round Wimbledon exit to America's Sam Querrey - the Serb's earliest loss at a Grand Slam event in nine years.