Some boxing fans feel Tyson Fury looked ‘nervous’ as he refused to stare back at Oleksandr Usyk after their final press conference on Thursday evening. The heavyweight unification bout gets underway this Saturday with Fury or Usyk set to go down in boxing history. There’s been a level of respect between the two fighters ever since it was first announced last year. And that was on show during the final press conference as neither fighter wanted to get involved in a war of words. Fury kept his words short and sweet as he promised to do his talking in the ring on Saturday. “I want to thank Usyk f…