Zverev, who is looking for his fourth tournament win of the year, needed only 64 minutes to defeat Nishikori and move into the final in WashingtonDC where he will play Kevin Anderson after the South African beat Jack Sock by the same score.
It will be the earliest meeting between the two since their first professional match in the second round of the 1998 Australian Open.
IMAGES from Saturday's English Premier League matches.
Here's a recap of all the events that shaped the world from the previous week.
News of all that transpired on and off the football field
Belgium fought back from two goals down to beat Japan 3-2 with an added-time goal from substitute Nacer Chadli on Monday to set up a World Cup quarter-final with Brazil.
Here's a glimpse of all that happened around the world last week, in 10 images
Roger Federer is one win from becoming the oldest world number one in ATP Tour history after beating Philipp Kohlschreiber 7-6(8), 7-5 in the last 16 of the Rotterdam Open on Thursday.
This contraceptive gel prevents sperm from leaving the body while allowing seminal fluid to pass through.
Manchester City are top on goal difference, with Chelsea second and Liverpool dropping to third, two points ahead of Arsenal, who routed Fulham 5-1.
In a handwritten letter sent to the White House, Alex asked Obama to go and collect Omran and bring him to his house where "we will be waiting for you guys with flags, flowers, and balloons."
What sets 2018 apart from previous years is the magnitude of the shocks that hit our brand ecosystem, says Bharat Bambawale.
A summary of the first day's play at the US Open.
Atletico Madrid striker Antoine Griezmann struck twice as the Spanish side outclassed hapless Olympique de Marseille 3-0 on Wednesday to win the Europa League for the third time.
The ultimate was surely Yudhishthira's immortal "Aswathama hatha...", followed by a whispered "iti narova kunjarova..."," says Sunanda K Datta-Ray.
The win moved Spurs up to third but unbeaten Manchester City still looked in a class of their own at the top as Leroy Sane scored twice in a 4-0 stroll over West Ham United.
Sukanya Verma lists the movies she grabbed at MAMI this year.
The 77th Annual Golden Globe awards have been announced. There were a few surprises and some expected nods. A quick glance at the winners, listed in bold.
In an interview with British GQ Magazine, the Duke of Cambridge shared details on what it's like without his mother today and dealing with grief in the spotlight.
Kick It Out said it was 'sickened by the disgusting racist abuse' and suggested UEFA should have taken stronger action.
Gabriel Jesus came off the bench to secure Manchester City a 1-0 English Premier League victory at Leicester City after yet another penalty miss by Pep Guardiola's side on Saturday. Chelsea's Olivier Giroud and Marcos Alonso returned to the starting lineup to stunning effect by grabbing a goal apiece in a crucial 2-1 home win over Tottenham Hotspur in the battle between the London rivals for fourth place.
A look at Hollywood's swish set at the Globes.
IMAGES from the FIFA World Cup first semi-final played between France and Belgium on Tuesday
17-month-old Princess Charlotte uttered her first word in public and also performed her first walkabout.
Liverpool and champions Manchester City drew 0-0 at Anfield while Chelsea and Arsenal enjoyed comfortable away wins. City are top on goal difference from Liverpool and Chelsea with Arsenal two points behind.
Manchester City suffered their first home Premier League loss in eight months as a shock 3-2 defeat by Crystal Palace on Saturday left Pep Guardiola's champions trailing leaders Liverpool by four points.
'All statue-building is an exercise in hubris, but Mr Adityanath's enterprise begs a question: Can a state with rampant child malnutrition and 325 children dying in a Gorakhpur hospital afford Rama's benediction?' asks Sunil Sethi.
Britain's newborn princess has spent her first night at home in Kensington Palace - but the guessing game continues over what her name will be.
Many former players believe that storming out of games is a powerful tool to counter racism, a move that will force administrators to take the problem more seriously, and act in a way that compels clubs to obliterate such a culture and evict those responsible, says Dhruv Munjal.
China got its first gold at the Rio 2016 Summer Olympics thanks to some sharp shooting skills by Olympic debutant Zhang Mengxue on Sunday. Presenting a round-up of the athletes who shone bright to take home gold medals on Day 2 at the Rio Games...
IMAGES from the English Premier League matches played on Tuesday
Former Wimbledon champion Marion Bartoli just wants to enjoy herself and play big matches when she returns to competitive tennis in March after more than four years in retirement.
The visitors got off to the perfect start when a mix up at the back saw Riyad Mahrez square for Jamie Vardy to tap into an open goal in front of the Kop in the third minute. Liverpool looked for an immediate riposte, but Salah missed two gilt-edged opportunities before Sadio Mane saw an effort disallowed for offside as Juergen Klopp's men grew frustrated.
Andrew Morton also wrote Princess Diana's tell-all biography.
Menlo Park Mayor Catherine Carlton is leading a 3-member team to Kerala.
Manchester United survived a tense finale to beat West Bromwich Albion 2-1 at the Hawthorns on Sunday and close to within 11 points of Premier League leaders Manchester City.
Australia set a world record of 7:41.50 en route to winning the gold medal in the women's 4x200 freestyle relay at the world championships on Thursday.
The 71st Emmy Awards have been announced, and there have been quite a few surprises and some expected nods.
Images from Day 3 of the 2020 US Open in New York, on Wednesday.
Italy has petitioned the United Nations over the trial of its two marines in India under a strict anti-piracy law for the killing of two Indian fishermen, and said it would exercise "all options" to bring back the naval personnel.
