Bob Arum has revealed Tyson Fury is set to make ‘changes’ for his rematch with Oleksandr Usyk later this year. The 35-year-old had been unbeaten prior to the clash at the Kingdom Arena in Saudi Arabia but ended up losing on points after being wobbled in the ninth round of the fight. Fury, speaking recently, made it clear he was eager to bounce back – with the pair set to do battle again on December 21. Arum, who promotes the Briton, has revealed the 35-year-old will make ‘changes’ to his game when they meet for a second time. “I’d assume there’d be certain changes but that’s up to Tyson and Su…