Kenyan Elijah Manangoi, who won the world title in the 1,500-meter dash in 2017, is the latest in a string of stars under investigation. This after he was unavailable for a doping test.
Previously, Christian Coleman, who won the 100 meters last year, and Salwa Eid Naser, who competes for Bahrain, have also been suspended while under investigation.
The text is updated.