The sporting week in pictures, including Mohamed Salah, Lee Westwood and Naomi Osaka

We pick out some of the key images of the last seven days taken from the Omega Dubai Desert Classic, Tour Down Under and the Winter Youth Olympics

England's Ollie Pope takes a catch to dismiss Rassie van der Dussen of South Africa, during the third Test in Port Elizabeth, on Sunday, January 19. AP

Courtney Rummel of the USA in action during the qualification run of the women's snowboard slopestyle event at the Lausanne 2020 Winter Youth Olympic Games in Leysin, on Saturday, 18 January. EPA

Naomi Osaka during her second-round victory against Saisai Zheng at the Australian Open on Wednesday. January 22. Getty

Left to right: Vladimir Balbekov and Daniil Nikolaev of Russia, Japan's Kosei Hayashi and Ethan De Rose of New Zealand compete in Men's 1000m short track speed final B at the Lausanne 2020 Winter Youth Olympics. Getty

Stuart Hogg of Exeter Chiefs warms up ahead of their Champions Cup match at home to La Rochelle at Sandy Park on Saturday, January 1. Getty

The peloton rides through a bushfire-ravaged area in the Adelaide Hills during Stage 2 of the Tour Down Under on Wednesday, January. EPA

Conor McGregor lands a knee to the face of Donald Cerrone in their welterweight fight during UFC246 at the T-Mobile Arena, on Saturday, January 18. The Irish fighter won the bout after just 40 seconds of the first round in Las Vegas. AFP

Simona Halep during her first round victory against Jennifer Brady at the Australian Open in Melbourne, on Tuesday, January 21. EPA

Yulianna Tunytska of Ukraine competes in women's luge at the Lausanne 2020 Winter Youth Olympics at St Moritz Olympia Bob Run on Friday, January 17. Getty

Liverpool striker Mohamed Salah of Liverpool celebrates after scoring his team's second goal during their 2-0 Premier League win over Manchester United at Anfield on Sunday, January 19. Getty

Germany's Josef Ferstl during the downhill race of the men's FIS Alpine Skiing World Cup in Wengen, Switzerland, on Friday, January 18. AFP

England's Lee Westwood with the Falcon Trophy after winning the Abu Dhabi HSBC Golf Championship on Sunday, January 19. EPA

The peloton ride near Cudlee Creek during Stage 3 of the Tour Down Under on Wednesday, January 23. AFP

India captain Virat Kohli catches out Australia's Marnus Labuschagne during the third and final one-day international between India and Australia in Bangalore on Sunday, January 19. AFP

Left to right: Marie Karoline Krista of Switzerland, Canada's Marie Pier Brunet, Ingrid Leivestad of Norway and China's Hongyun Ran compete in women's ski cross at the Lausanne 2020 Winter Youth Olympics on Sunday, January 19. Getty

Silvio De Sousa of the Kansas Jayhawks picks up a chair during a brawl as the US college basketball game against the Kansas State Wildcats ends in chaos at Allen Fieldhouse on Tuesday, January 21. AFP

Liverpool's Trent Alexander-Arnold acknowledges the home fans during the Premier League match against Manchester United at Anfield on Sunday, January 19. Getty

Italian rider Simona Frapporti (BePink Team) raises her arms after winning Stage 4 of the Adelaide Classic Street Circuit at the Women's 2020 Tour Down Under, on Sunday, January 19. EPA

Swedish golfer Joakim Lagergren tees-off on the 2nd hole on Day 4 of the Abu Dhabi HSBC Championship, on Sunday, January 19. Chris Whiteoak / The National

Al Nasr celebrate after beating Shabab Al Ahli 2-1 to win the the Arabian Gulf Cup in Dubai on Friday, January 17. Courtesy Arshad Khan Aboobaker/PLC.

Donna Vekic plays a forehand during her first-round victory over Maria Sharapova at the Australian Open in Melbourne on Tuesday, January 21. Getty

Rafael Nadal during his first-round victory against Hugo Dellien at the Australian Open in Melbourne, on Tuesday, January 21. EPA

Action from the Wadi Adventure International canoe slalom winter training Camp at Wadi Adventure in Al Ain, on Wednesday, January 22. Getty

Thomas Pieters on the eighth tee during Day 1 of the Omega Dubai Desert Classic on Thursday, January 23. Getty

Russian netminder Sergei Ivanov saves from US player Gavin Brindley in the men's ice hockey 6-team tournament final at Vaudoise Arena, during the 2020 Lausanne Winter Youth Olympic Games on Wednesday, January 22. Russia won the match 4-0. AFP

Everton goalkeeper Jordan Pickford watches Newcastle United defender Florian Lejeune's overhead kick hit the back of the net during their Premier League match at Goodison Park on Tuesday, January 21. Lejeune scored twice in injury-time to earn his side a 2-2 draw. Getty

The peloton rides through Stirling during Stage 2 of the Tour Down Under, on Wednesday, January 22. AFP

An athlete competes in the men's snowboard big air qualification round at the Lausanne 2020 Winter Youth Olympic Games on Wednesday, January 22. AFP

Nick Kyrgios signs autographs after his second-round victory over Gilles Simon at the Australian Open on Thursday, January 23. Getty

New Orleans Pelicans forward Zion Williamson attempts to score against San Antonio Spurs in the NBA on Wednesday, January 22. The Spurs won 121-117. AP

Veteran golfer Lee Westwood took the honours at last weekend's Abu Dhabi HSBC Championship as the 46-year-old clinched his 25th European Tour title.

The former world No 1 held the overnight lead and never relinquished it, carding a final-round 67 to finish on 19-under par.

In a quick turnaround in the UAE, Westwood then headed over to Dubai for the Desert Classic that started on Thursday.

Alas, there was no more heroics as the Englishman finished day one a whopping six-over par, eleven shots behind early leader Thomas Pieters of Belgium.

In Premier League football, runaway leaders Liverpool outclassed their old rivals Manchester United by winning 2-0 at Anfield.

Virgil van Dijk and Mohamed Salah grabbed the goals to take another step towards the title and heap more pressure on United manager Ole Gunnar Solskjaer.

The Norwegian's week would get even worse, though, when his team slumped to a first Premier League home defeat by Burnley at Old Trafford.

In mixed martial arts, Conor McGregor made a successful return to the UFC with a first-round knockout of Donald "Cowboy" Cerrone in Las Vegas.

You can see a selection of the best images from the action in the photo gallery above. To move on to the next image, click on the arrows, or if using a mobile device, simply swipe.