Gallery: The story from a dizzying day eight at the 2018 US Open

Novak Djokovic cools off at US Open

Here is our pictorial from day seven at the US Open, featuring former champions Roger Federer, Novak Djokovic, and Maria Sharapova.

Former finalist Kei Nishikori was look resplendent in purple as he moved into the quarter-finals.

And Madison Keys is looking good for another run at the final too.

Marin Cilic is quietly going very well in the tournament.

Naomi Osaka, meanwhile, will play a Grand Slam quarter-final for the first time.

There was less good news for Maria Sharapova, who lost her perfect night-match record at Flushing Meadows.

Not that Carla Suarez Navarro looked even remotely bothered by that.

Novak Djokovic just keeps churning out the wins with brutal efficiency.

The spotlight, as usual, just loved Roger Federer…

Although Andy Millman made him work VERY hard.

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