US Open champion on key to AO semifinal surge.
Serena offers straight-forward reason for her shocking collapse to Karolina Pliskova.
How 2006 Australian Open champion has helped Lucas Pouille reach the semifinals.
It's women's quarterfinal time in Australia, and we've also got the final two men's singles quarterfinals on tap. Full OOP here.
"I've never seen someone so locked in," Frances Tiafoe said of Rafa Nadal.
The Greek feels that he learned a lot about Nadal in his previous two meetings with the great Spaniard.
