Frank Buglioni will take Fedor Chudinov's WBA super-middleweight crown because he is beating better fighters in the gym, says the Briton's co-trainer Steve Collins.
Buglioni, 26, takes on unbeaten Russian Chudinov at Wembley Arena on Saturday.
Ex-world champion Collins coaches Buglioni alongside his brother Paschal.
"We've got sparring partners that can beat Chudinov that Frank's handling in the gym," said the Celtic Warrior. "We are very positive. And very sure."
|6ft 1in||Height||5ft 9½in|
|13||Wins by knockout||10|
Collins, 51, was responding to the assertion from Chudinov's camp that their fighter will win because he has been sparring with Sergey Khomitsky, the Ukrainian who inflicted Buglioni's only professional defeat.
"There's only one difference," said the 28-year-old Chudinov's promoter, Russian Wlad Hrunov, at a bad-tempered press conference in a central London hotel.
"His name is Sergey Khomitsky, he stayed with us in the training camp. He sparred with him."
Buglioni swiftly responded that "he's not the same style as me though, is he?"
Paschal Collins added: "If you're going on the Sergey Khomitsky fight, if you're looking at that fight and thinking that [the Buglioni of 2014] is going to be in front of you, throw that right hand over the top and see what happens. Your fighter gets knocked out."