Manchester United must see off competition from Juventus for Dinamo Zagreb midfielder Mateo Kovacic.
Dinamo have confirmed the presence of United scouts at Champions League games this season to check on the talented playmaker.
Turin sources say Juve are also in contact with Dinamo as general manager Beppe Marotta attempts to close an agreement for the January market.
Unlike United, Juve do not have to worry about UK work permit laws, which has already hurt United in their pursuit of young Serb talent in the form of Adem Ljajic.