Tyson Fury showed off his leaner, slimmer physique in a surprise appearance on ITV’s Dancing on Ice on Sunday night. The Briton is currently training ahead of his blockbuster bout with Oleksandr Usyk, with the two men poised to lock horns on February 17. Fury had originally been due to face Usyk last month. However, their fight was delayed with the Gypsy King needing more time to recover from his gruelling victory over Francis Ngannou back in October. Fury appeared on Dancing on Ice on Sunday to wish close friend Ricky Hatton well. Hatton is competing in the show, with the former boxing star h…