Irishman Paul Hughes seeks revenge against Usman Nurmagomedov on Friday in Abu Dhabi. Hughes, 28, is challenging Nurmagomedov for the PFL lightweight title eight months after he was beaten by the Russian. Nurmagomedov edged Hughes on points in a closely fought battle which could have gone either way. Can Hughes become the first fighter to beat 27-year-old Nurmagomedov? BBC Sport asks fighters and pundits for their predictions.