- Tag results for Novak Djokovic
Team World's Jack Sock and Kevin Anderson needed a tiebreaker to defeat the doubles dream team of Federer and Djokovic 6-7, 6-3, 10-6.
Playing away is still an enormous task for the Indian team, which has landed here without its top singles player Yuki Bhambri and Asian Games men's doubles gold medallist Divij Sharan.
Djokovic clinched his third US Open title on Sunday with a 6-3, 7-6 (7/4), 6-3 triumph over del Potro, taking him level with Pete Sampras's mark of 14 Grand Slams.
Djokovic, playing in his eighth US Open final, delivered a businesslike 6-3, 7-6 (7/4), 6-3 victory over third-seeded Juan Martin del Potro of Argentina.
Seeded to face Federer in the quarter-finals, Djokovic found himself instead across the net from John Millman after the unheralded Australian stunned the Swiss great.
Novak Djokovic clinched his third US Open title on Sunday with a 6-3, 7-6 (7/4), 6-3 triumph over Juan Martin del Potro, taking him level with Pete Sampras's mark of 14 Grand Slams.
Djokovic can equal Pete Sampras's record of 14 Grand Slam titles when he faces Juan Martin del Potro in Sunday's final where friendship will be put to one side in pursuit of unfinished business.
Djokovic will start the heavy favourite, boasting a 14-4 record over the Argentine who will be playing in just his second final at the Slams.
US Open finalist Juan Martin Del Potro is the next in line to qualify for the 2018 Nitto ATP Finals, which would mark his first appearance at The O2 in London since 2013.
Kei Nishikori stumbled into a buzzsaw in the shape of Novak Djokovic on Friday, but the Japanese star leaves the US Open pleased one year after missing the tournament through injury.
The Serbian star, who ended a 54-week title drought with his 13th Grand Slam title at Wimbledon, defeated John Millman 6-3, 6-4, 6-4.
Djokovic made light work of the Portuguese World No. 68 in the third set and won three back-to-back games with the scores level at 3-3 to cruise into the quarter-finals.
For players such as Novak Djokovic, rejuvenated after an ice bath during his first match, the benefit of an extreme heat policy at the U.S. Open has been clear.
With the temperature topping 33C and the humidity approaching 50% - and that combination making it feel more like 40 C - nearly everything became a struggle for every player across the grounds.
Djokovic became the first man to win all nine Masters titles with victory over Roger Federer at Cincinnati on Sunday.