I'm at a different level to Wardley - Parker

New Zealand's former world heavyweight champion Joseph Parker says he will prove he is at a "different level" to British opponent Fabio Wardley.

The two face each other at London's O2 Arena on Saturday with the winner expected to face undisputed world heavyweight champion Oleksandr Usyk next.

Listen to Joseph Parker v Fabio Wardley on BBC Radio 5 Live, BBC Sounds and the BBC Sport website & app on Saturday 25 October.

READ MORE: Wardley v Parker to be live on BBC