Manchester United target Mario Mandzukic is reportedly certain to leave Juventus over the January transfer window.

The Croat has been rendered surplus to requirements under new Juventus boss Maurizio Sarri, who has not handed him a minute of action this season.

Reports have suggested that United had reached an agreement in principle with Juventus over the £10m transfer of Mandzukic in January.

According to Tutto Mercato, the 33-year-old is bound to leave Turin in January and has already effectively 'packed his bags' ahead of moving to Manchester in 2020.

Juventus sporting director Fabio Paratici confirmed earlier this season that Mandzukic was free to find himself a new club ahead of January.

United have placed a strong emphasis on signing a striker in January following the club's decision to dispense with - and failure to replace - attacking duo Romelu Lukaku and Alexis Sanchez over the summer.