Joshua successfully defended his IBF and WBA world heavyweight titles with a 10th round stoppage victory over Frenchman Takam in Cardiff last night.
Despite getting his nose bloodied early on in the contest, Joshua landed some huge punches and the fight was eventually stopped by referee Phil Edwards.
Joshua has a choice as to who he could fight next, with a bout against Deontay Wilder widely talked about.
But Parker didn’t hold back in criticising Joshua’s performance, and reckons he could knock him out.
Talking of a potential showdown with Joshua, Parker told the New Zealand Herald: “The more I watch him the more I want to fight him.
”I’ve wanted to for ages but we’re waiting for them to give us a good offer.
“The more I see of him the more I think ‘damn, if I fought this guy I’d knock him out’.
“It looked like Joshua was struggling a bit trying to KO him.
“I fought Takam and afterwards Joshua said ‘if I had have fought him I would have knocked him out’.
“He couldn’t knock him out [the result was a technical knockout] and I think it was an early stoppage.”