Rafael Nadal and Roger Federer remain on course to meet in the semi finals of the U-S Open.
The World Number One booked his place in the last eight with a comfortable victory over Ukraine’s Alexandr Dolgopolov in New York last night.
Federer over came Philipp Kohlschreiber to reach the U-S Open quarter finals for the 12th time.
Venus Williams and Petra Kvitova meet in the Women’s Singles quarter finals today.
Top seed Karolina Pliskova will take on America’s Coco Vandeweghe.
