Big-serving Canadian Milos Raonic fired 19 aces to topple Sam Querrey 6-4, 6-4 and set up a second-round clash with either Dan Evans or Russian 10th seed Andrey Rublev.
The 33-year-old left-hander from Luxembourg had lost all five of his previous tour finals but prevailed at the sixth attempt in the Australian Open warm-up event at the Olympic Tennis Centre.
Images from Day 2 of the 2023 US Open at Flushing Meadows in New York on Tuesday.
Images from Day 4 of the 2023 Australian Open, at Melbourne Park.
Jarrod Bowen and Mohammed Kudus' second-half goals gave West Ham a 2-0 win over Manchester United in the Premier League's early game on Saturday, as the Hammers briefly moved into the top six.
IMAGES from matches on Day 4 of the US Open at Flushing Meadows in New York on Thursday.
IMAGES from the Australian Open matches played at Melbourne Park on Wednesday
Images from Day 7 of the 2021 US Open in New York on Sunday.
Serbia sealed their place in the Davis Cup quarter-finals in straightforward fashion but Britain survived another nail-biter before joining them in the last-eight on Thursday.
Andy Murray's dedication to the Davis Cup has proved invaluable to the British team, but it may also rob the ATP Tour Finals of one of it's biggest draws this year.
Images from Day 1 of the Australian Open in Melbourne on Monday.
She is the second Swiss player to win the tournament after Martina Hingis won the inaugural edition in 2001.
It ended a woeful few days for reigning champions Croatia. They left with two losses.
Laslo Djere won his first ATP title at the Rio Open on Sunday and then captured the hearts of the Brazilian crowd with a victory speech dedicated to his parents, both of whom died from cancer.
Images from all the action on Day 5 of the Australian Open
Davis Cup champions Britain were locked at 1-1 with Japan after the opening two singles of their World Group, first-round tie on Friday after Andy Murray gave the hosts the lead.
Johanna Konta earned the chance to fulfill a childhood dream when she advanced to an Australian Open quarter-final contest against Serena Williams by dismantling Ekaterina Makarova 6-1, 6-4 on Monday.
Nadal, playing his first match since losing to Roger Federer in the Wimbledon semi-finals, fell behind 5-2 in the tiebreak before roaring back to prevail in his first career meeting with world number 53 Evans.
Images from Day 6 of the 2016 US Open tennis tournament in New York, on Saturday.
Britain's Johanna Konta overpowered Agnieszka Radwanska 6-4, 6-2 in a one-sided victory in the final of the Sydney International on Friday to claim her second career WTA title.
Images from all the action on Day 3 at the Australian Open in Melbourne on Wednesday
Rafael Nadal fired hosts Spain into the Davis Cup final as he joined Feliciano Lopez to win a thrilling late-night doubles and seal a nail-biting 2-1 victory over Britain on Saturday.
Top seed Dominic Thiem was knocked out the Rio Open in the first round on Tuesday, going down 6-3, 6-3 to Laslo Djere.
Under the lights on the stadium court, Williams smashed 39 winners to defeat Azarenka 7-5, 6-3 in a rematch of the 2016 final, which the Belarusian won.
A summary of sports events and sports persons, who made news on Sunday
A summary of Monday's action at the US Open.
Raucous home support for holders Argentina did not make up for the absence of Juan Martin del Potro and Federico Delbonis on Friday as they fell 2-0 behind to Italy in the first round of the Davis Cup.
Big-serving Isner reaches Montreal second round
A summary of sports events and sports persons, who made news on Tuesday
With fire in their bellies, former Grand Slam champs Rafael Nadal and Roger Federer are targetting a fresh return to the tennis courts in 2017.
The many moods of the fans at the World Cup in Russia
IMAGES from the English Premier League matches played on Saturday.
The late Florence Griffith Joyner topped the list of 10 inductees into the United States Olympic Hall of Fame.
IMAGES from all the action on Day 8 the Australian Open on Monday
Images from Day 5 of the 2021 US Open in New York on Friday.
The many moods of the fans at the World Cup in Russia
It was Kristyna's first win over a top-five ranked player and she will go on to play fellow Czech Barbora Strycova in the quarter-finals.
A round-up of results from Davis Cup matches played on Saturday and Sunday
Roger Federer guided Switzerland to victory in their Davis Cup World Group playoff tie against the Netherlands with an easy 6-3, 6-2, 6-4 victory over Thiemo de Bakker on Sunday.
The Argentine, making his first appearance at Wimbledon since reaching the semi-finals in 2013, held aloft his arms in triumph after condemning twice Grand Slam champion Stan Wawrinka to his earliest defeat at the All England Club for three years.