A former NCAA champion in javelin was given a four-year doping ban in a ruling published Tuesday.
Ioannis Kyriazis of Greece, who also placed sixth at the 2017 world championships, tested positive for the steroid-like muscle builder Ligandrol, track and field's Athletics Integrity Unit said.
Kyriazis is banned until May 2023. He failed a doping test in an out-of-competition sample taken in April last year at College Station, Texas.
The 24-year-old athlete won the 2017 NCAA title representing Texas A&M University, two months before competing at the worlds in London.
At his disciplinary hearing in London, the panel dismissed a claim that Kyriazis was accidentally contaminated by a prohibited substance used by a housemate for bodybuilding.