Nadal is at the top of the world rankings with 1960-points ahead of number two Federer.
Nadal was seen chatting with Federer during the break in between the first and second sets.
Federer and Nadal played on the same side of the court for the first time at the Laver Cup.
Djokovic and Murray are both expected back in tennis action in 2018.
Nadal is just three titles behind Federer's 19 majors following his US Open triumph.
McEnroe will captain the world team in the inaugural Laver Cup.
Nadal has won five titles including two majors on his way to securing the number one ranking.
Federer and Nadal are keen to play doubles with each other at the 2017 Laver Cup.
Laver believes Kyrgios will improve results-wise with maturity.
Nadal and Federer could play doubles for Team Europe in the Laver Cup.
Nadal has never won the ATP World Tour Finals and wants to accomplish it in 2017.
Muguruza will begin her Japan Open campaign against Monica Puig.
Nadal won his 16th major title at the 2017 US Open and is 3 behind Federer.
The former world number one says strides are being made for women in sports.
Nadal currently holds a 1960-point lead over Federer going into the final part of the 2017 season.
Wilander believes there is a big difference between Murray and the rest of the Big Four.
Kyrgios is known for stepping up whenever he faces a big name.
The inaugural Laver Cup will commence on 22 September.
Nadal won his 16th Grand Slam title at the 2017 US Open.
Nadal won his 16th Grand Slam title after defeating Kevin Anderson to win the US Open.
Nadal did not encounter any top players along the way to US Open title, says Toni Nadal.
Nadal's win in Flushing Meadows took his Grand Slam count to 16.
Federer has beaten Nadal in all their 3 encounters thus far this season.
Federer won the Australian Open and Wimbledon in 2017 to extend his record to 19 Grand Slam titles.
Nadal breezed through the competition to win his third US Open title.
Both Djokovic and Murray are expected to be back in action in 2018.
Nadal won his 16th men's singles Grand Slam title at the 2017 US Open.
The Spaniard wins his third title at Flushing Meadows after a straight sets masterclass.
Rafael Nadal will face Kevin Anderson in the 2017 US Open final on Sunday.
Stephens defeated Keys 6-3, 6-0 for first ever Grand Slam.