Kell Brook has "got no fear in him" ahead of his much-anticipated clash with Gennady Golovkin, according to the Brit's agent, Eddie Hearn.
The Yorkshireman is preparing to take on the WBC and IBF middleweight champion on Saturday, but is apparently not intimidated by the unbeaten Kazakh.
"I'm nervous for Kell, but seeing him at this stage, Gennady Golovkin is more nervous about this fight than Kell Brook," Hearn said.
"Kell was the same when he fought Shawn Porter. I've never seen a kid more relaxed in the dressing room before a world title fight, in a territory he's never been in before, with a [governing] commission he's never boxed with before.
"He's not the full ticket! That's the only way you can describe Kell Brook. He's got no fear in him.
"He knows the dangers of the fight. I watched Gennady Golovkin, KO King , on Sky Sports the other night. I texted Kell and asked him what he was up to and he said 'I'm watching it too – it's great!'.
"He's buzzing about the fight. He's just so happy he's going to get a chance to show what he can do."