American Danielle Collins is out of the Australian Open following a straight-sets defeat by fellow countrywoman Madison Keys.

Defending Australian Open champion Jannik Sinner stumbled early Thursday ... I can improve, yes, but I'll take it." Danielle ...

Defending champion Jannik Sinner raced to victory at the Australian Open to sweep into the last 16 as Iga Swiatek demolished ...

Danielle Collins keeps perspective after falling to fellow American Madison Keys in the third round of the Australian Open ...

Defending champion Jannik Sinner recovered his composure after an early setback to storm into the third round of the ...

Defending Australian Open champion Jannik Sinner stumbled early Thursday ... I can improve, yes, but I'll take it." Danielle Collins gave the hostile crowd a roasting after beating local favorite ...

Defending champion Jannik Sinner raced to victory at the Australian ... his fairytale run on his debut in Melbourne. But Danielle Collins, the pantomime villain after thanking hecklers for ...

World No. 1 Jannik Sinner continues his title defence and home hope Alex de Minaur is in action. Danielle Collins riled up the crowd after her second-round win and will be back on court against ...