Austria's Dominic Thiem can barely believe beating Rafael Nadal ©Getty Images

"Picture_Gallery"

Nadal remains one Grand Slam behind Roger Federer's 21 ©Getty Images
Nadal remains one Grand Slam behind Roger Federer's 21 ©Getty Images
Simona Halep is all smiles after reaching the women's semi-finals ©Getty Images
Simona Halep is all smiles after reaching the women's semi-finals ©Getty Images
 Alexander Zverev came from behind to reach the men's last four ©Getty Images
Alexander Zverev came from behind to reach the men's last four ©Getty Images
Garbiñe Muguruza continued her progression in the women's event ©Getty Images
Garbiñe Muguruza continued her progression in the women's event ©Getty Images
Fans showed their support for the Spaniard, who was born in Venezuela ©Getty Images
Fans showed their support for the Spaniard, who was born in Venezuela ©Getty Images
A pink sky again provided the backdrop at Melbourne Park ©Getty Images
A pink sky again provided the backdrop at Melbourne Park ©Getty Images
Back-to-back women's wheelchair champion Diede de Groot was beaten at the first hurdle  ©Getty Images
Back-to-back women's wheelchair champion Diede de Groot was beaten at the first hurdle ©Getty Images
Reigning men's wheelchair champion Gustavo Fernandez was also knocked out ©Getty Images
Reigning men's wheelchair champion Gustavo Fernandez was also knocked out ©Getty Images
Australia's quads hero Dylan Alcott made a winning start ©Getty Images
Australia's quads hero Dylan Alcott made a winning start ©Getty Images