British tennis player Katie Boulter is out of the China Open losing to Wimbledon runner-up Karolina Muchova in the second round.

Boulter went 4-1 up in the first set but failed to take advantage and was knocked out in straight sets.

World tennis number five Felix Auger-Aliassime has called on Roger Federer’s former coach to help him regain some form.

Ivan Ljubicic who reached world number three as a player – guided Federer to three of his Grand Slam titles.

Auger-Aliassime has suffered early exits at the US Open and China Open since reaching the Wimbledon quarter-finals earlier this year.