WBC heavyweight champion Tyson Fury will be attempting to make history on Saturday night when he faces Oleksandr Usyk.
The pair will go head-to-head in Riyadh for the undisputed heavyweight title live on DAZN PPV, and in the build-up Fury has claimed that he will be boxing's greatest ever heavyweight if his hand gets raised come the final bell.
However Lennox Lewis, who was the last heavyweight boxer to be an undisputed champion, explained why Fury cannot class himself as the best heavyweight boxer and named the opponent he still needs to face if he wants to be mentioned in the conversation.
"No there's more to be done because people will be saying 'well you didn't box AJ'," Lewis told The Daily Mail.
"He still has to fight AJ. I think that's the fight the British public are going to love and the British public will want.
"I think it will be a good fight, they both have good skills. Everybody's going to be looking at AJ's right hand. Can he hit Tyson Fury?"
Joshua arrived in Riyadh earlier this week with his sights set on facing the winner of Fury's clash with Usyk as he attempts to become a world heavyweight champion for a third time.
Live on DAZN PPV: Fury vs. Usyk on May 18. Click here for details.