Canadian steeple record holder Matt Hughes announces his retirement

In a post on social media, Hughes shared the ups and downs of an intense and successful career

Canadian 4x100m team upgraded to silver following British team’s positive drug test

The British team was provisionally suspended after CJ Ujah’s positive test for two banned substances in the wake of their silver medal performance in Tokyo

Blessing Okagbare receives 10-year doping ban

The Nigerian sprinter tested positive for multiple banned substances and refused to submit documentation requested by investigators