No. 6 seed Yuan Yue came back from down 3-0 in the second set to win the last six games of the match and defeat former world No. 1 Simona Halep on Monday in the opening round of the Hong Kong Open.
Defending champions Sania Mirza and Martina Hingis suffered yet another early exit on the American hardcourts as the world number one women's doubles pair crashed out of the Miami Open in the second round on Tuesday.
Serena Williams has defeated her compatriot in four straight matches since a defeat in the quarter-finals of the 2013 Australian Open.
Federer, Djokovic headline Day 2 at Flushing Meadows
Sumit Nagal immediately set his sights on Thiem who has reached two French Open finals, losing both to Nadal.
Defending champion Novak Djokovic was handed a tough opening round at Wimbledon when Friday's draw paired him with Germany's Philipp Kohlschreiber.
Multiple grand slam champion Maria Sharapova withdrew from the Brisbane International on Tuesday after suffering an arm injury in practise less than two weeks before the Australian Open.
IMAGES from Day 5 of the Australian Open in Melbourne, on Friday.
Images from matches played on Day 4 at the US Open at the Flushing Meadows in New York on Thursday.
Prajnesh, India's top-ranked singles player at 122, downed the local wild card Jason Kubler 7-5, 6-3 in the first round
As tradition demands the Serb will open play on Centre Court on Monday as defending men's champion but rather than a gentle loosener the 28-year-old faces a real danger in the form of Germany's Philipp Kohlschreiber, the world number 33.
A summary of Tuesday's action at the US Open.
Images from Day 3 of the French Open matches played at Roland Garros on Tuesday
Defending champion Novak Djokovic moved confidently into the second round of Wimbledon with a 6-4, 6-4, 6-4 win over German Philipp Kohlschreiber on Monday.
Images from Day 2 of the 2020 US Open in New York
Photos from matches played Day 7 of the Australian Open at Melbourne Park on Sunday