DUBAI: Andrey Rublev is pursuing his quest to become the first player since Roger Federer in 2015 to claim back-to-back Dubai Duty Free Tennis Championship titles after marching to this year’s final. Rublev stormed into the ATP 500 final at this week’s DDF championship, edging out childhood friend and No. 7 seed Alexander Zverev in straight sets in front of a capacity crowd at