The elite athlete revealed he has stopped eating meat and dairy in a post online about the devastating impact of the bushfires on the Australia's wildlife.

MIKE DICKSON IN NEW YORK: Twelve months ago a fast-rising young opponent - not to mention a vigilant umpire - turned the US Open final into something of a nightmare for Serena Williams.

Mark Cavendish is doing all he can to keep his Olympic dream alive as he bids to secure a spot in the final UCI track cycling World Cup event in Canada this month.

It's HOT OR NOT time again as Sportsmail's Riath Al-Samarrai reveals what's been making him feel warm and what's been leaving him cold this week.

From April 2020, any shoe must have been available for purchase by any athlete on the open retail market for a period of four months before it can be used in competition.

RIATH AL-SAMARRAI: New levels of bemusement were attained with this week's revelations of how he changed his story about an L-carnitine infusion to USADA investigators.

While some British athletes are abroad training for the Olympics and will not be compelled to return, the firm advice from the organisation is against further travel out of the country from this point.

RIATH AL-SAMARRAI: Roman Abramovich, Gary Neville and anyone else who has had the decency to do what they can to help a few others in a unique time of crisis deserve enormous credit.

RIATH AL-SAMARRAI: Amir Khan has proved himself to be a wonderful fighter and donating his four-storey building in Bolton to be a temporary hospital shows what he is as a man.

INTERVIEW BY RIATH AL-SAMARRAI: That Duncan Goodhew can relate to the uncertainty facing Adam Peaty also means he is well placed to predict the younger fish will prevail to win gold.

The 39-year-old reality TV star could not seem to stop touching her bottom as she walked from the building and into a waiting car while fans stopped to take photos. There could have been a tear.

The 19-year-old hitman has become the hottest property in world football after an incredible 40-goal season for Red Bull Salzburg and Borussia Dortmund.

The highly-rated Borussia Dortmund frontman has been heavily touted to join either of the two European giants at the end of the season, with £65million rumoured to be the fee required to seal the deal.

Emre Can has bemoaned former manager Maurizio Sarri's decision to exclude him from the Juventus squad before the midfielder's £21million move to Borussia Dortmund.

Borussia Dortmund's sensational 2011-12 season will live long in fans' memories but not in Jurgen Klopp's, as the German coach was too drunk to 'notice' the celebrations. 

Borussia Dortmund placed a £100million price tag on the England international earlier this season with several European clubs desperate to sign him.

The 24-year-old Olympic medallist didn't appear to be letting his slightly rounder shape get him down as he enjoyed another day of partying up a storm at Ocean Beach Ibiza on Tuesday.

Strictly Come Dancing star Louis Smith was accused of sulking when fellow Briton Max Whitlock won gold and knocked him down to silver in the pommel horse final at Rio 2016 yesterday.

The singer, 29, looked noticeably slimmer in her cute outfit choice, that boasted a sweetheart neckline and thigh-skimming hem. 

Iggy Azalea has been left furious after trolls accused the Australia singer of 'not working hard enough'. 

Luis Suarez admits Barcelona have a 'tough year ahead of us' after a 2-0 defeat at Granada. Ramon Azeez and Alvaro Vadillo netted in either half as Granada moved top of La Liga.

Suarez has been the club's main centre forward since signing from Liverpool in the summer of 2014, scoring 185 goals in 260 appearances, but now the club are looking for his long-term replacement.

The Catalan giants look set for a busy couple of days to end the window, with Luis Suarez having suffered a serious and potentially season-ending injury.

After Carles Perez joined Roma on Thursday, 21-year-old Abel Ruiz now looks set to follow him out of the exit door when he signs a five-year deal at Braga before the transfer deadline.

Barcelona have not made an approach for Real Sociedad striker Willian Jose despite being in desperate need of attacking cover, according to the president of the Basque club.

Getafe president Angel Torres has admitted he would not stand in the way of striker Angel Rodriguez joining Barcelona as an emergency signing.

Terry was found not guilty of racially abusing Anton Ferdinand, then of QPR, in court but subsequently found guilty by the Football Association, banned for four matches and fined £220,000.

Netflix has been slammed for pledging to cut back on depictions of smoking in its original shows, after a study found it's more prominent than in broadcast and cable television.

To the disappointment of superfans everywhere, actress Ruby Rose has had to pull out of her appearances at San Diego Comic-Con this weekend, to continue filming buzzy new show Batwoman.

Katarina Johnson-Thompson may not defend her heptathlon title at the prestigious Hypomeeting in Gotzis, Austria later this month because her coach is wary of people taking 'pot shots' at her.

Johnson-Thompson believes she has the ability to beat Ennis-Hill and wants to fulfil her burgeoning potential with a gold medal in Rio next month.

It's HOT OR NOT time once again, as IAN LADYMAN runs the rule over the good and bad from the world of sport this week, including Glenn Hoddle, Gary Neville and Mark Cavendish.

HOT OR NOT: Patrick Bamford rediscovers form at Middlesbrough

Katarina Johnson-Thompson insists she has no plans to switch away from heptathlon to jumping events - but has indicated she is open to contesting a decathlon before the close of her career.

Petty was in federal court after turning himself into the Marshals, and is set to face a judge later today, according to TMZ .

The actress' character Erin and her boyfriend Dylan decide to get jiggy when they spot a portaloo at a party, sparking a very awkward scenario as a group of fellow party-goers are left outside.

ESPN's 'College GameDay' host Chris Fowler asked the swimmer who he thought would win today's game between the LSU and Texas A&M. And Lochte chose Auburn, who weren't even playing.

Scientists now say the admission by Michael Phelps and Ryan Lochte during the summer Olympics about urinating in the pool is really not such a bad thing.

The White House published a tweet claiming Scotland is not part of the UK. In a now deleted post, the US President’s official residence said Donald Trump was 'departing the U.K.’.

Keli Thomson, 24, had an emergency refit at her home in Edinburgh while her landlord was on holiday, but the rubble was left in her garden. An angry neighbour took issue with the mess.

Gail Dickinson, of Glenrothes, Fife, was allegedly seen by the victim's grandmother having sex on the balcony of an apartment in San Antonio in Ibiza. But today she was cleared.

Kevin Lygo, ITV's director of television, has declared enough is enough: 'I'm tired of another show that has B-rate celebrities going to Mykonos to look at their feet.'

Friends say it's just that Simon 'can't bear' the idea of matrimony, monogamy or losing his freedom. This is no secret. But why is the X Factor judge so scared to become Lauren Silverman's husband?

The  23-year-old singer appeared briefly in a sketch with host Blake Shelton where she jokingly told the country crooner that he could not be a part of her 'squad,' which includes Swift.

It's Hot or Not time again as Sportsmail 's Ian Ladyman reveals what's been making him feel warm and what's been leaving him cold this week.

Since winning the AT&T Pebble Beach Pro-Am in February, Mickelson has recorded just one top-20 finish on the PGA Tour - a tie for 18th at the Masters - and has slipped to 47th in the world

Eddie Jones launched a scathing attack on the decision to send off Manu Tuilagi for a high tackle during England's 33-30 Six Nations victory against Wales at Twickenham. 

Madonna has addressed social media backlash she received on Monday night after giving a speech about Aretha Franklin at the MTV VMAs.

England's Royal College of Nursing has warned people to avoid nitrous oxide, known as nos, at Glastonbury Festival this week because it can cause unconsciousness, choking and even death.

Hogg said he would be 'very annoyed' if one of his Scotland team-mates was so quick to move on from their own exit at this year's showpiece in Japan.