Ash Barty's coach has confessed to tinkering with the world No.1's racquet strings before her surprise third-round loss to Shelby Rogers at the US Open.

Ash Barty's coach Craig Tyzzer has cast serious doubt on the world No.1 playing in the 2021 WTA Finals, saying it could compromise her Australian Open lead-in.

Australian interest at the WTA's Luxembourg Open is over with Astra Sharma suffering a first-round loss to Danish teenager Clara Tauson.

Wheelchair tennis star Dylan Alcott has won the US Open quad singles, becoming the first man to complete a calendar year 'golden slam' of major titles.