Three wins in 2013 have helped revive the Welshman's career after four losses from eight fights at cruiserweight, and while revealing that he doesn't expect to draw Braehmer into a brawl, he has insisted that he is ready for the challenge against the German.
The 33-year-old is quoted by BBC Sport as saying: "He is probably stylistically the worst one that I could have picked.
"I'd quite fancy my chances of having a square-up. Having a tear-up in the middle of the ring wouldn't frighten me in the slightest.
"He is a world champion, but I can quite honestly tell you I've never in my life turned a fight down."
Maccarinelli has 38 wins from 44 contests, while Braehmer has lost just twice in the same number of fights.