- Joseph Parker – former heavyweight world champion tests positive for cocaine BBC
- Former world boxing champion Joseph Parker tested positive for cocaine on day of Fabio Wardley fight The Sun
- Joseph Parker fails drugs test: Former heavyweight world champion tested positive for traces of cocaine on day of Fabio Wardley defeat Sky Sports
- Report: Joseph Parker Tests Positive For Cocaine on Day of Wardley Fight RingMagazine.com
- Joseph Parker: Former heavyweight champion faces long boxing ban after failed drugs test The Independent
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