• Blues see off competition from Crystal Palace, West Ham and Juventus • Belgium striker will be Antonio Conte’s first signing of busy transfer period Chelsea have acted with ruthless efficiency to secure the Belgium forward, Michy Batshuayi, from Marseille in a deal worth an initial €40m (£33.2m) as they seek to kickstart a busy summer of squad strengthening at Stamford Bridge. Related: Henrikh Mkhitaryan set to join Manchester United for £30m after ‘improved offer’ Related: Fulham’s…