"I think that settles my nerves there", said the second seed.
The second seed, who said she kept cool by pretending to be "on the beach with a margarita in hand" after seeing off Sam Stosur in the first round, faces Ukraine's Lesia Tsurenko last on the Louis Armstrong Stadium. And one for the younger set: 20-year-old Frances Tiafoe of the USA takes on 19-year-old Alex de Minaur of Australia.
The Swiss tennis stalwart, who had an absolute domination in the competition from the years 2004 to 2009, had 41 consecutive wins before that streak was snapped by Argentine Juan Martin Del Potro in the final in 2009.
Federer conceded the game amid confusion among the crowd on Ashe, and then was broken for the first time in the following game when Nishioka converted his sixth break point of the set. Both could be on tap at the U.S. Open: Federer needed a few swigs of water on another steamy day at the Open and he played like a former champion set to uncork a celebratory bottle of bubbly.
Federer broke the Japanese left-hander in the opening game of the one-sided encounter and never looked back.
The players took a 10-minute break between the third and fourth sets to help them cope with the conditions and spent the downtime side-by-side, "naked in the ice baths", Djokovic said in a post-match broadcast interview.
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Nine News reports the captured have since been treated by paramedics for fever and chills and transported to Cairns. MP George Christensen called for better border protection in his home state after the news emerged.
In the very first game of the match, Federer was able to break his opponents serve and he repeated the same feat in the fifth set as Nishioka won just seven receiving points in the first set.
On his performance against Paire, Federer felt his display was mixed despite winning in straight sets.
Speaking after his second round win over Benoit Paire, Federer was asked who would win between the Federer of 2018 and Federer of 2008.
Roger Federer sent something of a shock wave through... She will meet Townsend for the first time for a spot in the third round. The match lasted two hours and 18 minutes and Roger clinched a 7-5 6-1 7-5 win for the place in the final.
Bouchard had to go through qualifying to reach the main draw and moved into the second round by beating Harmony Tan of France 6-3, 6-1. If both decline, play continues. "But, no, never gets old", he added.
Djokovic had a much easier victory over Sandgren, an American ranked 61st, in Wimbledon's first round this year, dropping only six games in all.