The sporting week in pictures, including Sergio Aguero, Virat Kohli and Conor McGregor

We pick out some of the key images of the last seven days taken from the likes of the Lausanne 2020 Winter Youth Olympics, the Abu Dhabi HSBC Golf Championship and UFC 246

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World-class golf returned to the UAE this week as the Abu Dhabi HSBC Championship teed-off on Thursday.

Dubai-born amateur Josh Hill had already made the headlines by defeating world No 1 Brooks Koepka during a practice round at Abu Dhabi Golf Club.

It was back down to earth with a little bump for the 15-year-old, though, when he was left "a bit disappointed" by a 2-over par opening round 74. Koepka, in his first tournament after three months out with a knee injury, shot a 66 to leave him two shots behind early leaders Shaun Norris and Renato Paratore.

In football, Manchester City goal machine Sergio Aguero became the most successful overseas scorer in Premier League history.

By grabbing his 12th league hat-trick in a 6-1 thrashing of Aston Villa, the Argentine overtook Thierry Henry and reach 177 goals in England, level with Frank Lampard in the hit-list.

Only three players – Alan Shearer, Wayne Rooney and Andrew Cole – have now scored more.

Preparations for the this season's first tennis Grand Slam – the Australian Open – have been thrown into disarray by the bushfires currently devastating the country.

Tournament organisers have been heavily criticised for not postponing qualifying matches because of poor air quality.

Dalila Jakupovic of Slovenia was forced to quit her match against Stefanie Vogele after suffering a coughing fit, while Britain's Liam Broady called on players to "make a stand" against being forced to play in such conditions.

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.