Parker (20-0, 18 KOs) defends his world title against Hughie Fury (20-0, 10 KOs) in Manchester on September 24.
Parker won the belt when it was vacated by Tyson Fury last year as the giant Brit's career was sidetracked by drugs and depression.
Tyson Fury hasn't fought since he won the WBO, IBF, IBO and WBA titles off Wladimir Klitschko in late 2015 and remains non-commital about his own fighting future.
But he's predicting big things for 22-year-old Hughie who is coming off 18 months of inactivity to step up and take on the unbeaten Parker.