Wilder, the WBC heavyweight champion of the world, does not buy any notion that boxers accidentally take the wrong substances.

Australian swimmer Shayna Jack reportedly failed a doping test ahead of the World Championships.

Brisbane based freestyler Jack on Sunday night confirmed she was the latest athlete to be caught up in a doping scandal, having tested positive to Ligandrol during a routine drug test.

The Brisbane-based 20-year-old is the latest rising star to be embroiled in a doping scandal, having tested positive to Ligandrol during a routine drug test last month.

The Australian wheelchair basketballer and tennis player said he owes Horton an apology, but said he could no longer cope with the online abuse he was receiving from Chinese trolls.

The sporting authority released a statement on Monday to address its general investigative processes - after it came under heavy fire for not revealing the results.

Former Australian swimmer Giaan Rooney believes Shayna Jack accidentally ingested Ligandrol ahead of the FINA World Championships in South Korea.

The 23-year-old refused to share the podium with victorious Sun after winning silver in the men's 400m freestyle final at FINA's World Championships in South Korea on July 21.

Algeria distanced themselves from suggestions that medication taken by Riyad Mahrez on their watch led to fears the Manchester City star could fall foul of doping rules.

A blind triathlete from Brisbane has been banned from fulfilling his life-long dreams amid a doping scandal, but he claims he's never had anything stronger than coffee.

The AIU have stated their support for a change to the key rule in the saga, which saw one of Coleman's three 'whereabouts' breaches in a 12-month period backdated by two months.

The American, who is the heavy favourite to win the 100m in Doha, had faced a potential suspension after three missed tests in a 12-month period, as revealed by Sportsmail .

American sprinter Christian Coleman has accused the United States Anti-Doping Agency of "going after a big fish" and demanded a "public apology" after a case against him was dropped.

MATT HUGHES: Russia are facing a worldwide ban from all major sports events after being given three weeks to explain signs of tampering with drug tests. 

EXCLUSIVE BY MATT HUGHES: Athletics' chiefs want to tighten the sport's drug-testing regime after the world's fastest man Christian Coleman escaped doping sanctions earlier this month.

RIATH AL-SAMARRAI IN DOHA: Christian Coleman is on course for 100 metre glory at the World Athletics Championships but his doping violations mean he can't replace Usain Bolt as the face of the sport.

COMMENT BY RIATH AL-SAMARRAI: To hear Christian Coleman in the early hours of Sunday morning was to feel bemused by the brazenness of it all,

Dillian Whyte could be back in the ring before the New Year and is still optimistic about beating his doping charge.  The investigation into his failed test is still ongoing.

Slovenian cyclist Janez Brajkovic, 35, posted the pictures of his incredibly lean legs after returning to the track following a ten-month doping ban for testing positive for methylhexaneamine.

Dillian Whyte will have to wait until February 2021 for his WBC heavyweight title shot, if his 'situation is resolved' by UK Anti-Doping. 

Although Whyte has not been banned, the WBC decided to suspend his status as 'interim' champion. Therefore, Tyson Fury has been installed as the new mandatory challenger.

Shane Sutton sensationally stormed out of the Richard Freeman medical tribunal on Tuesday after branding the former Team Sky and British Cycling medic a 'spineless liar'.

Russia could be set for a new ban from major international sporting events like next summer's Olympic and Paralympic Games over claimed inconsistencies in anti-doping data.

The prospect of Russian track and field athletes taking part in the Tokyo Olympics are looking slimmer after the president of the country's athletics federation was charged on Thursday.

Russia's reinstatement process has been suspended by the World Athletics Council following fresh anti-doping charges against senior officials. The RusAF has been banned since 2015.

It follows an investigation into the data handed over by the Moscow laboratory in January as part of the reintegration process of the Russian Anti-Doping Agency following the state-sponsored doping scandal.

Investigators from the World Anti-Doping Agency found inconsistencies in laboratory data obtained from the Russian anti-doping agency in January.

EXCLUSIVE BY ROB DRAPER: UK Athletics called a special meeting with the English Institute of Sport to discuss the controversial use of thyroid medication on elite athletes.

Dillian Whyte has been officially cleared by UK Anti-Doping following a lengthy investigation into a positive test in the build-up to his points win against Oscar Rivas in the summer.

Dillian Whyte should be immediately reinstated as mandatory challenger for the WBC heavyweight title after being cleared of doping, according to promoter Eddie Hearn. 

Russia have been banned from the world's top sporting events for four years, including next summer's Tokyo Olympics and the 2022 Qatar World Cup, for tampering with doping tests.

Vladimir Putin's comments come after WADA barred teams under a Russian flag from competing at the Olympic and Paralympic Games in 2020 and 2022 and the football World Cup in 2022.

EXCLUSIVE BY MATT HUGHES: American athletes are planning podium protests at the Olympics to express anger at the presence of Russian athletes if they win medals at next summer.

British Olympic chiefs have called for even tougher sanctions against Russia to prevent their athletes competing as neutrals in Tokyo next year.

Speaking about the World Anti-Doping Agency's decision, Putin said Russia were 'being punished for the same thing twice - we've never had anything like this in the history of humankind.'

When Dillian Whyte returns to the ring in April, he is likely to face either Andy Ruiz Jr or Alexander Povetkin, according to boxing promoter Eddie Hearn.

ROB DRAPER AND PETER ALLEN IN PARIS: A criminal trial will start on Monday with some huge names on the International Olympic Committee sweating to see if they are named in court.

A courtroom battle billed as sport's trial of the century is set to start in Paris on Monday. Lamine Diack and six others will stand trial accused of conspiring to cover up positive drugs tests

The trial of Lamine Diack, the former president of World Athletics, has been adjourned until June and the 86-year-old's request to return from Senegal has been refused.

MIKE KEEGAN IN PARIS: World Athletics is to sue Lamine Diack and his co-defendants for £35million. The ex-head of the sport's governing body, formerly known as the IAAF, was in a Paris court on Monday.

World doubles No.1 tennis player Robert Farah, 32, has pulled out of the Australian Open after testing positive to steroids.

Russia have hit out at UK Anti-Doping for constructing a 'wall of distrust' by refusing to hand over Mo Farah's blood and urine samples to the World Anti-Doping Agency. 

Tebas has previously accused Manchester City and Paris Saint-Germain of 'ruining the entire system' and called for them to be thrown out of European competition.

According to the Mirror, Barnsley boss Gerhard Struber held a team meeting to break the news last week before informing the group that Diaby would not be featuring against Bristol City last Saturday.

Barnsley have suspended Bambo Diaby while the FA investigate an alleged anti-doping violation by the defender. The 22-year-old is believed to have been tested after a 3-2 defeat at Blackburn last November.

The possibility of a blanket ban on Russians in the athletics disciplines at Tokyo 2020 increased after World Athletics ordered their disgraced national federation to admit to doping offences.

RIATH Al-SAMARRAI: Sir Mo Farah could face investigation by UK Anti-Doping agency after it emerged he changed his story when talking to investigators about injections he received.

EXCLUSIVE BY RIATH AL-SAMARRAI: British Olympian Pavey has called for greater scrutiny of Salazar's involvement at UK Athletics from his four years as consultant with the organisation.

EXCLUSIVE BY MATT HUGHES: Russia has asked the Court of Arbitration for Sport for more time to prepare an appeal against their four-year ban from international sport.

Boyle, a vocal activist for clean sport, has said Horton deserves the 2019 South Korea world championships gold medal after Sun Yang was hit with an eight year ban for his second doping offence.