The two heavyweights are scheduled to face off at the Principality Stadium in Cardiff on December 3.
Dubois is the WBA (Regular) champion, while Joshua is the IBF, WBO, and WBA (Super) champion.
The fight is a huge opportunity for Dubois to make a name for himself on the world stage.
He has been touted as a future star of the sport, and a win over Joshua would certainly put him in the spotlight.
However, he will have his work cut out for him.
Joshua is a seasoned veteran with a wealth of experience at the highest level.
He is also a powerful puncher, with 24 knockouts from his 26 fights.
However, one thing is for sure: the fans are in for a treat.
This is a heavyweight showdown between two of the best fighters in the world.
It is sure to be an unforgettable night of boxing.
Who do you think will win?