By Jamie Spencer Barcelona are reported to have made a late transfer window approach for Liverpool youngster Stefan Bajcetic in an attempt to boost their depleted midfield. Gavi and Frenkie de Jong have begun the new season injured, while Ilkay Gundogan was among a handful of recent departures that helped make it possible to register summer signing Dani Olmo. Barca thought they had an in-house solution with 17-year-old Marc Bernal, the latest talent to come off the production line at La Masia. But the youngster suffered a potentially season-ending knee injury during the midweek win over Rayo V…