Joseph Parker has had to adjust his focus ahead of the Fight for Life now he will face WBO world No 15 Irineu Costa Beato jnr instead of American Vinny Maddalone.
After Parker entered the world's top 10 in the WBA last week, boxing promoters Duco Events decided to change his opponent for the December 6 event at Hamilton's Claudelands Arena, lining him up against the hard-hitting 34-year-old Brazilian.
Parker's trainer Kevin Barry says his charge faces a big challenge to maintain his impressive form and record and finish off a busy year in style.
"It's a pretty big fight to finish the year with," Barry explained. "We are fighting an opponent that is very dangerous, the Brazilian champion, and an opponent that Joseph will need to be very focused and very disciplined against.
"We've had a tremendous year. This is Joseph's fifth fight in the last seven and a half months. We have to make sure now that we close the year out in good style."