Rafael Nadal met his wife through his younger sister Maribel, a childhood friend of Xisca Perello.
Roger Federer is third in the world rankings, while Rafael Nadal and Novak Djokovic won all four Grand Slams between them this year.
Roger Federer, who has won a doubles gold alongside fellow Swiss Stan Wawrinka, is still waiting to get his hands on an Olympic singles gold.
It is the second year in a row that Rafael Nadal, the 19-time Grand Slam champion, will have failed to appear in Shanghai.
Roger Federer was seen coaching Rafael Nadal at the Laver Cup as Team Europe captain Bjorn Borg watched on.
Laver Cup: Jack Sock and Nick Kyrgios beat Rafael Nadal and Stefanos Tsitsipas 6-4, 3-6, 10-6.
Roger Federer delighted his home fans alongside Alexander Zverev, as the European pair saw off Shapovalov and Sock after a dramatic second set.
ATP Cup, the new world tennis team event, will feature 24 nations split into six groups across Sydney, Brisbane and Perth.
Rafael Nadal registered a 7-5, 6-3, 5-7, 4-6, 6-4 victory over Daniil Medvedev to win the US Open for a fourth time, his 19th Grand Slam title.
Rafael Nadal's latest coronation, his 19th Grand Slam title, reinforced the fact the slower courts of the US Open and his obliging knees have turned New York into a land of opportunity.
Daniil Medvedev dropped the first two sets to Rafael Nadal in his first Grand Slam final but charged back to force a decider.
Rafael Nadal clinched his fourth US Open crown in thrilling fashion, squandering a two-set lead before outlasting Russian fifth seed Daniil Medvedev.
Rafael Nadal captured his 19th career Grand Slam title in thrilling fashion.
US Open 2019 Highlights, Rafael Nadal vs Daniil Medvedev: Rafael Nadal clinched victory in five sets.
Rafael Nadal is chasing his 19th career Grand Slam singles title, one shy of Roger Federer's all-time men's record.
Together with Roger Federer and Novak Djokovic, Rafael Nadal has been part of a historic trio whose members own 54 of the past 65 Grand Slam men's singles titles.
Rafael Nadal will play for his fourth US Open crown on Sunday against Russian fifth seed Daniil Medvedev, who reached his first Grand Slam final.
Rafael Nadal defeated Argentine 20th seed Diego Schwartzman 6-4, 7-5, 6-2 to set-up a semi-final clash with Italy's Matteo Berrettini.