Mourinho is apparently looking for a mature player who can be the understudy of Lukaku and with Manzduzic previously having the experience of winning league titles with Bayern, Atletico and Juventus, the idea of getting him for a swap deal has apparently also intrigued the Portuguese boss.
Mandzukic is currently with his national side at the World Cup in Russia and scored during their last-16 win over Denmark last week. The 32-year-old's club future is only expected to be resolved when he returns from the tournament.