The American is unbeaten in 17 fights and will vie for Joshua's IBF heavyweight title on June 25, live on Sky Sports Box Office.
Breazeale knows he is stepping into the lion's den - Joshua has stopped his last five opponents at London's O2 Arena - but has vowed to fight fire with fire.
"There's going to be blood, man," he exclusively told Sky Sports.
"It's two modern day gladiators going toe-to-toe fighting each other, beating each other.
"It's going to be two big, goliath men on June 25. I know what two big devastating men can do in a ring.
"There's no time to be nervous and not know that you're confidently the bigger, better man."
Breazeale knows he is stepping into the lion's den - Joshua has stopped his last five opponents at London's O2 Arena - but has vowed to fight fire with fire.
"There's going to be blood, man," he exclusively told Sky Sports.
"It's two modern day gladiators going toe-to-toe fighting each other, beating each other.
"It's going to be two big, goliath men on June 25. I know what two big devastating men can do in a ring.
"There's no time to be nervous and not know that you're confidently the bigger, better man."
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