Aussie Olympic champion Grant Hackett says the global anti-doping body has a 'credibility issue'
![Aussie Olympic champion Grant Hackett says the global anti-doping body has a 'credibility issue'](https://i.dailymail.co.uk/1s/2024/05/11/04/84730903-0-image-a-39_1715398972667.jpg)
Grant Hackett has slammed WADA for its failures in handling doping cases, particularly concerning Chinese swimmers allowed to compete at Olympics despite failing drug tests