Clinical Juan Martin del Potro books John Isner quarter-final date

US Open
Juan Martin del Potro celebrates

Another match, another straight sets victory for Juan Martin del Potro on Arthur Ashe Stadium.

The 2009 US Open champion is yet to lose a fourth-round match on the main court at Flushing Meadows and he is yet to drop a set in this year’s tournament.

He made sure that streak stayed alive on Sunday as he saw off the challenge of Borna Coric, hitting 33 winners en route to a 6-4, 6-3, 6-1 win.

Del Potro was in complete control and the only time the 20th seeded Coric had a bit of joy was when he broke back in game seven of the opening set. After that it was one-way traffic.

“I think to win in straight sets every match is important for the body, for the legs, for the physical condition. But in the end every match is a new battle, and you must be 100 per cent for that moment,” the Argentine said.

“It doesn’t matter if I win in three sets or five sets, in the next round it will be a new match.”

He will face John Isner for a place in the semi-final after the American beat Milos Raonic 3-6, 6-3, 6-4, 3-6 6-2 in three hours and nine minutes.


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