The United States’ Haley Anderson claimed the first gold medal of the 16th International Swimming Federation (FINA) World Championships in Kazan with success in the women’s five kilometres race.

2015: Olympic gold medallist withdraws from Australian World Aquatics Championships team after doping

offenceApril 2015: Russian Anti-Doping Agency to collect athlete samples during Kazan 2015 World

Marathon runner Christopher Guajardo, a Paralympic gold medallist at London 2012 as a guide for a visually impaired runner, has become the 14th athlete - and second Chilean - to test positive here during Toronto 2015 after reportedly failing for erythropoietin (EPO).

weightlifter Patrick Mendes, fourth in the under 105kg event, and who has already served one ban in 2012 for doping

May 23 was positive.Related storiesJuly 2015: Colombian Olympic cycling medallist latest to fail doping

test at Toronto 2015July 2015: Wrestling medallist among five more doping cases to emerge at Toronto

2015 after failed drug testsJuly 2015: Peruvian swimming silver medallist among five positive doping

Russian President Vladimir Putin was in attendance in Kazan this evening as the International Swimming Federation (FINA) World Championships was officially launched with an Opening Ceremony at the Tatneft Arena Sports Palace to set into motion 17 days of sporting action.

drink driving arrest last year, while Park is currently serving an 18-month ban after failing a doping

 .China’s Sun Yang is returning from a doping ban served last year to head the freestyle entries

2015: Olympic gold medallist withdraws from Australian World Aquatics Championships team after doping

offenceApril 2015: Russian Anti-Doping Agency to collect athlete samples during Kazan 2015 World

Usain Bolt hit back at his doubters on a wet evening here at the Sainsbury’s Anniversary Games, winning the men’s 100 metres final with a season-best equalling time of 9.87sec. 

meanwhile, stormed to 3,000m success in his first competitive race on home soil since allegations of doping

Britain's Mo Farah won the men's 3,000m in his first race on home soil since allegations of doping were

Defending Tour de France champion Vincenzo Nibali showed he will not give up his title without a fight as he claimed stage 19 of this year's event on the penultimate Alpine day of the race from Saint-Jean-de-Maurienne to La Toussuire as the Italian's potential successor Chris Froome suffered his first setback of the race.

Tour de France by winning stage 15July 2015: Michael Pavitt: Abuse of Froome shows danger of presuming doping

Usain Bolt, whose stop-start season starts again tomorrow when he runs the 100 metres at the Olympic Stadium in London in the Sainsbury’s Anniversary Games, has insisted he will defend his world title in Beijing next month – and added that he intends to do so successfully.

record of 9.58.Meanwhile Justin Gatlin of the United States, who returned to the track from a second doping

Romain Bardet secured a second French triumph of the 2015 Tour de France as he rode alone for the final 40 kilometres of the 186.5km leg from Gap to Saint-Jean-de-Maurienne to claim stage 18 of the three-week race.

Tour de France by winning stage 15July 2015: Michael Pavitt: Abuse of Froome shows danger of presuming doping

Canada’s rising sprint star Andre De Grasse met the home crowd’s expectations here tonight as he secured Pan American Games gold in the men’s 100m final, but United States proved to be the dominant force on day 12 of competition at Toronto 2015.

the closing 30 metres her advantage disintegrated as Jamaica’s Sherone Simpson, who had an 18-month doping

won an Olympic points race bronze at Athens 2004, has become the 13th athlete to be implicated in a doping

weightlifter Patrick Mendes, fourth in the under 105kg event and who has already served one ban in 2012 for doping

that a drugs test on May 23 was positive.Related storiesJuly 2015: Wrestling medallist among five more doping

Toronto 2015 after failed drug testsJuly 2015: Peruvian swimming silver medallist among five positive doping

Germany's Simon Geschke finished solo at the end of the 161 kilometres route from Digne-les-Bains to Pra Loup to claim victory on stage 17 of the Tour de France, while two of the main general classification riders suffered in the saddle following the second rest day.

Tour de France by winning stage 15July 2015: Michael Pavitt: Abuse of Froome shows danger of presuming doping

suspended by the International Equestrian Federation (FEI) after two of his horses returned positive doping

, as well as controlled medication substance morphine.The other of Guerdat's rides embroiled in the doping

The ongoing transfer of three Jamaican athletes to Bahrain has been described  by Warren Blake, President of the Jamaica Athletics Administrative Association (JAAA), as being part of a “developing trend” for competitors from his country.

action begins at Incheon 2014February 2014: David Owen: Does sport need a plan to counter diplo-doping

the spirit of clean sport thrives and many in the sporting community fight the good fight against doping

One of the World Anti-Doping Agency's (WADA) priorities is to provide athletes of the world with better

we felt the time was right to shine a light on the importance of whereabouts and the Agency’s Anti-Doping

WADA continues to improve ADAMS for everyone’s benefit in anti-doping, and it will be given a major

WADA introduced whereabouts in 2004, which requires athletes to provide their anti-doping organisation

Anti-doping organisations are then able to detect the doping patterns of those who want to rob the majority

In doing so, these athletes help simplify the work of the anti-doping community.

The World Anti-Doping Agency (WADA) has suffered a marked deterioration in its financial contribution

note, WADA is in the process of collecting $12 million (£8 million/€11 million) for a special anti-doping

Report for 2014.pdf.Related storiesJune 2015: WADA President calls for improved efficiency in anti-doping

sheds light on still shadowy world of anti-dopingJune 2015: New WADA report exposes tiny number of anti-doping

Slovakian national champion Peter Sagan was today forced to settle for second place on a stage at the 2015 Tour de France for the fifth time.

Tour de France by winning stage 15July 2015: Michael Pavitt: Abuse of Froome shows danger of presuming doping