After a flawless first set from Mertens the tide turned in Andreescu's direction in the second when she fired a cross-court forehand winner to break the Belgian at love and take a 4-2 lead.
Prajnesh Gunneswaran got a taste of high-level tennis in his first-round exit from the US Open, losing to world number five Daniil Medvedev in 84 minutes, in New York, on Monday.
Roger Federer called on Wednesday for a merger between the men's ATP Tour and the WTA, which runs the women's circuit, as tennis wades through a lengthy coronavirus shutdown with lower-level professionals in deep financial crisis. The tennis season was suspended in March due to the COVID-19 pandemic and the hiatus will continue at least until mid-July, depriving lower-level players, who depend solely on tournament winnings, of the chance to earn a living.
The organisers of the US Open said on Thursday a decision on whether to hold the Grand Slam this year amid the coronavirus outbreak will be made in June, and playing it without fans is on the table but highly unlikely. The US Open, which is scheduled to run from August 31 to September 13, is both the largest and loudest of the four Grand Slam events on the tennis calendar and United States Tennis Association (USTA) chief executive Mike Dowse does not anticipate that changing.
Wimbledon champions and World No 1s Novak Djokovic and Serena Williams head the field for the men's and women's events at this year's US Open.
'I was trying to play every match like it was my last one. Trying to play best all the time' 'For me it is easy to practise and stay in this life but sometimes it is hard to compete'
Images from the 2022 Wimbledon Championships at the All England Club in London on Sunday.
Raymond Moore has stepped down as CEO and tournament director of the BNP Paribas Open following controversial comments he made about women's tennis, the tournament announced on Monday.
Black Lives Matter was stenciled onto NFL fields and NBA courts. Athletes raised fists and took the knee.
Elina Svitolina stretched every sinew in a brilliant display of defensive tennis to register the biggest win of her career when she rallied for a 3-6, 6-2, 6-2 triumph over Sloane Stephens in an enthralling WTA Finals title decider on Sunday.
World number one Novak Djokovic and number two Rafa Nadal set up a mouth-watering men's singles final at the US Open with victories in the semi-finals at Flushing Meadows on Saturday.
Former world number one Caroline Wozniacki eased into the semi-finals of the US Open on Tuesday with a ruthless 6-0, 6-2 win over wounded Latvian Anastasija Sevastova.
Nadal will next face Ukraine's Alexandr Dolgopolov.
While the year's final grand slam is just underway tennis fans have circled Sept. 8 when, if all goes to form, Nadal and Federer would meet to decide a place in the final.
The US Open women's semi-finals scheduled for Thursday evening have been postponed due to the threat of rain.
Serena Williams said the latest chapter in her tennis life was "just beginning" on Saturday after seeing her hopes of a record-equalling 24th Grand Slam title dashed in the Wimbledon final.
Images from Day 8 of the 2021 US Open in New York on Monday.
Australian Bernard Tomic courted controversy yet again when he fired lewd comments toward a heckler at the US Open during his first-round upset loss to Bosnia's Damir Dzumhur on Tuesday.
Chasing a sixth US Open title, Federer needed just one hour and 46 minutes under a closed roof at Arthur Ashe Stadium to put away the 31st seed Lopez, leaving plenty in the tank after being forced to go the distance in his opening two matches.
Dolgopolov, who advanced to the 2nd round of the US Open on Wednesday, said he could not remember ever being approached to fix a match.
Following is a list of winners of the Sportsperson of the Year award by Sports Illustrated magazine.
"I am many things: a son, a brother, and uncle, a friend, an athlete, a cook, an author, and being gay is just one part of who I am," said Boitano, the 1988 Olympic gold medallist in a statement. "First and foremost I am an American athlete and I am proud to live in a country that encourages diversity, openness and tolerance.
Overpowers Svitolina to reach second straight US Open final
A summary of Wednesday's action at the US Open.
Hewitt, the 2001 champion, received his wildcard via a reciprocal agreement with Tennis Australia, which will grant an American a wild card into next year's Australian Open, and was among 16 players who received wildcard entries.
Zhang Shuai stunned Wimbledon Champion Angelique Kerber 6-1, 2-6, 6-0 in the China Open on Thursday to set up a quarter-final clash with Naomi Osaka.
The 24-year-old started brightly by taking the first set off the 19th seed on Monday but his lack of match fitness told as, despite frequent treatment from the trainer, he lost the next three to bow out at the first hurdle in a third straight grand slam.
IMAGES from Day 9 of the US Open matches played on Tuesday
Ana Konjuh has opened some eyes at Flushing Meadows as the 18-year-old former world number one junior emerged to reach her first Grand Slam quarter-final at the US Open.
Fifth seed Simona Halep narrowly avoided a third-round upset with a 6-1, 2-6, 6-4 win over Hungary's Timea Babos on Saturday to keep her US Open title hopes alive.
A six-time champion at Flushing Meadows, Williams was once money in the bank when it came to the US Open
Images from Day 4 of the 2021 US Open in New York on Thursday.
IMAGES from the US Open matches played on Day 1 at the Flushing Meadows in New York on Monday.
Five-times champion Roger Federer reached his first US Open final in six years as he raced past fellow Swiss Stan Wawrinka 6-4, 6-3, 6-1 at Flushing Meadows in the semi-finals on Friday.
Rediff.com presents the early surprises at the year's final Grand Slam
'He probably deserves a player that is probably more dedicated to the game than I am. He deserves a better athlete than me'
However, the 30-year-old Russia belied her own self-doubt with an impressive three-set win over the Romanian to thrust the former world number one back into the spotlight as the toast of the Big Apple.
The US Open reached an emotional climax on Sunday as the year's final grand slam paused amid heavy security before the start of the men's singles to remember those who died in the 9/11 attacks 15 years ago.
Serena Williams will be wary of another semi-final slip-up when she takes to the Arthur Ashe Stadium court on Thursday to face 10th seed Karolina Pliskova for a spot in the US Open final.
Sloane Stephens will be defending her title at the U.S. Open but all eyes will be on Serena Williams over the coming two weeks as the six-times champion attempts to win her first Grand Slam title since becoming a mother.