The world team clinched the doubles to register their first point.
Agnieszka Radwanska and Roberto Bautista Agut have been confirmed for this summer's ASB Classic.
The Spaniard claimed his third title at Flushing Meadows with a clinical win against Kevin Anderson.
The 24-year-old American dominated Madison Keys to win her first Grand Slam title.
The Kiwi tennis ace has secured a place in the mixed-doubles final in NYC.
The Argentine is experiencing a career renaissance at the US Open
There'll be no rematch with Rafael Nadal after Juan Martin del Potro advanced with a four-set quarter-final win.
The world No.1 has thrashed promising Russian Andrey Rublev in style.
US women have booked three of the four semi-final spots with one match to play.
The Swiss superstar won in straight-sets during his fourth round match.
The serial-offending Italian's latest on-court tirade has him in line for a heavy fine.
The Spaniard hit his stride against Alexandr Dolgopolov to move into the US Open quarter-finals.