Top-seeded Rafael Nadal is out of the Australian Open after losing his quarterfinal to Dominic Thiem in four sets. Nadal had been trying to win his 20th Grand Slam title to tie Roger Federer's record for men. Thiem won by doing to Nadal what Nadal does to so many opponents. He hustled after every ball, slugged away from the baseline and found the right spots to go to the net. Thiem had lost all five previous Grand Slam matches he played against Nadal. That includes each of the past two French Open finals. Thiem reached his first Australian Open semifinal and will play Alexander Zverev for a berth in the title match.