US Open: Dominic Thiem and Alexandr Dolgopolov reach fourth round

US Open: Dominic Thiem and Alexandr Dolgopolov reach fourth round

Going into Monday's match against Thiem, del Potro had not dropped a single set at the US Open this year.

"I was sick the last two days and I came here to play as best as I can". That's what I did and in the end, I just kept fighting.

"It's going to be an interesting match to play".

2017 had been a quieter year thus far for Del Potro.

Wednesday's matches will include Nadal vs. Rublev and Federer vs. del Potro on the men's side.

Del Potro started to play better, and a break early in the third set gave him the extra confidence he needed to believe in his chances.

We saw a madness in the match between del Potro and Dominic Thiem.

Del Potro then served aces to save both match points, and eventually won the fourth set in a tiebreaker. In the fourth, nevertheless, he was two points from defeat when Thiem served at 5-3 and 30-0.

For Del Potro, beating Federer should have meant he had the world at his feet.

Juan Martin del Potro revealed he was moments away from ending his last-16 contest with Dominic Thiem prematurely and missing out on a rematch of the 2009 US Open final with Roger Federer.

Nadal crushed Alexandr Dolgopolov 6-2, 6-4, 6-1 in one hour and 41 minutes before Federer swept past Philipp Kohlschreiber 6-4, 6-2, 7-5 in an equally clinical fourth-round display.

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Weeks after Wimbledon, Andy Murray and Novak Djokovic shared the same betting odds to win the U.S. Open as Nadal, at +400.

"I just felt something, sort of my muscle being tight at the back", Federer said of the time out. "I came to the net very often, tried to be aggressive all the time, and I think I played well". Hopefully I can recover a little bit more on my day off tomorrow.

"He combines fantastic points with mistakes". I don't want to get older. "I love this tournament and I love to be here in NY".

He will take on Russian teenager Andrey Rublev, who upset ninth seed David Goffin of Belgium 7-5, 7-6 (5), 6-3.

On the other hand, we have the Argentinian who quietly reached the quarterfinals.

Karolína Pliskova crushed American Jennifer Brady 6-1, 6-0 in 46 minutes to advance. He didn't drop a set against any of those opponents and stayed ideal against Schwartzman while appearing in his second major quarterfinal. That's four American women - Keys, Sloane Stephens, Venus Williams and Vandeweghe - in the quarterfinals.

The 32-year-old Estonian is ranked 418th after missing much of the past two years with problems in the soles of both feet and a virus known as a precursor to mononucleosis.

Kanepi, a former world No. 15 whose career was nearly ended by illness and a crippling injury, downed Russia's Daria Kasatkina 6-4, 6-4. Not many balls surprised me.

Del Potro won their 2009 final here 3-6, 7-6, 4-6, 7-6, 6-2.

"Good night to everybody and thank you very much from the heart for the support you gave me", Del Potro said. And then Del Potro relaxed, played as he knew he could and won his first - and (to date) only - major title.