Anthony Joshua has adopted a "ferocious" mindset ahead of his comeback fight against Kristian Prenga and is primed to "cause an awful lot of pain", says Matchroom president Barry Hearn.
Source: [Sky Sports](https://www.skysports.com/boxing/news/12040/13565282/anthony-joshua-ferocious-british-heavyweight-will-cause-kristian-prenga-an-awful-lot-of-pain-says-barry-hearn)