Joseph Parker denies taking 'any prohibited substance'

Joseph Parker, who failed a drugs test on the day of his 11th-round stoppage to British heavyweight Fabio Wardley.

Joseph Parker has denied taking "any prohibited substance" after failing a drugs test.

A routine test by the New Zealander given to the Voluntary Anti-Doping Association (VADA) on the day of his bout against Fabio Wardley last month returned a positive result, reportedly for cocaine, and leaves Parker with a battle to prove his innocence.