Anthony Joshua asked his Ukrainian friend to translate what Oleksandr Usyk's corner said to him during their fight at the Tottenham Hotspur Stadium.
AJ lost his WBA, WBO, IBF and IBO belts to Usyk in an unanimous points decision in September last year and is looking to get revenge during their rematch on Saturday.
Joshua is eager to reclaim his titles in Saudi Arabia and and admitted to using a translator to gain a great insight into Usyk's tactics before their blockbuster bout.
Anthony Joshua asked his Ukrainian friend to translate what Oleksandr Usyk's corner said to him during their first fight at the Tottenham Hotspur Stadium last September
Speaking to TalkSPORT, AJ said: 'One thing he [Usyk] has been working on is his cardio.