Kenya’s Asbel Kiprop has tested positive for a banned substance, according to reports.
The Olympic and three-time world 1500m gold medallist is said to have failed an out of competition test.
On Wednesday, the Daily Mail reported that ‘senior athletics sources’ had confirmed the failed test.
According to the Guardian, Kiprop is understood to be aware of the allegations but ‘believes there is an error with his sample and he is fighting his case’.
The paper included a comment from Kiprop, who was quoted as saying: “I have read the reports linking me to doping. As an athlete, I have been at the forefront of the fight against doping in Kenya, a fight I strongly believe in and support.
“I would not want to ruin all what I have worked for since my first international race in 2007. I hope I can prove that I am a clean athlete in every way possible.”
The 28-year-old claimed the 2008 Olympic title after his silver medal was upgraded to gold following the disqualification of winner Rashid Ramzi due to a doping offence.
Kiprop’s three world titles were won in 2011, 2013 and 2015, while his PB of 3:26.69 recorded in 2015 puts him third on the world 1500m all-time list.
He placed sixth at the Rio Olympics and ninth at the London 2017 World Championships.
The Athletics Integrity Unit has not yet responded to a request for comment.