Anthony Joshua is adopting “a gladiator mentality” as he prepares to put his world heavyweight titles on the line.
The Briton defends his IBF, WBA, WBO and IBO belts at Wembley Arena against Bulgarian Kubrat Pulev on Saturday.
It is the 31-year-old’s first fight since winning a rematch against Andy Ruiz Jr on a unanimous points decision 12 months ago.
“I’ve become tougher, more relentless over the last year,” Joshua told the BBC 5 Live Boxing podcast.
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How to follow Joshua v Pulev on the BBC
In an interview with the BBC’s Mike Costello and Steve Bunce, Joshua says he is:
Learning to become “uncivilised” in the ring;
Biding his time before any clash with Tyson Fury;
Wary of the threat posed by “tricky customer” Pulev.