内容摘要：Australia's defence minister Richard Marles has called on China to explain why it needs to have "such an extraordinary military build-up".

Australia's defence minister Richard Marles has called on China to explain why it needs to have "such an extraordinary military build-up".

After three hours and 19 minutes of high-class action, a thumping forehand down the line sealed Alcaraz's 100th clay-court win on the ATP Tour."Honestly, today I fought against myself in the mind," he said. "I just tried to calm myself - in some moments I was mad.

"I was angry with myself, talking not good things. I'm happy that I didn't let that thought play against me."I tried to calm myself and tried to keep going."The second seed will face another American, Tommy Paul, in the last eight after the 12th seed beat Australia's Alexei Popyrin 6-3 6-3 6-3.

Having said he "didn't enjoy" his battling win over Damir Dzumhur in the third round, Alcaraz was far closer to his best on Sunday and had to be against the big-hitting Shelton.The first set headed to a tie-break after only one unconverted break point for the favourite, but it was Shelton who initially gained the upper hand.

With the crowd roaring their approval as the pair played out a number of stunning points that saw both players at the net, Alcaraz was forced to stave off three set points.

Having done so, the four-time Grand Slam champion took the tie-break but was immediately under pressure in the second set.''We are incredibly grateful for the support from Arts Council England which helps us bring these fantastic events into the heart of our community," she said.

The full list of author's talks are on theI step into the booth with some trepidation. I am about to be subjected to strobe lighting while music plays – as part of a research project trying to understand what makes us truly human.

It's an experience that brings to mind the test in the science fiction film Bladerunner, designed to distinguish humans from artificially created beings posing as humans.Could I be a robot from the future and not know it? Would I pass the test?