So says his promoter Eddie Hearn, ahead of this weekend's fight with Oleksandr Usyk.
Anthony Joshua's promoter, Eddie Hearn, says the heavyweight world boxing champion deserves huge respect for putting his belts on the line.
He faces undefeated Ukrainian Oleksandr Usyk at a full capacity Tottenham Hotspur Stadium on Saturday night.
Victory for Joshua would keep him on course for an all-British unification bout with Tyson Fury.
Hearn says that's what keeps driving him on: