Manchester United could block Nemanja Matic from leaving in 2020.

Antonio Conte's Inter Milan are keen on Matic and monitoring his situation, says Corriere dello Sport.

The Serbian midfielder's deal at the club expires next summer, meaning Inter could begin pre-contractual negotiations for a free transfer in January.

But United want to take up their option to extend Matic's deal to avoid losing the player for nothing.

Conte managed Matic when he was at Stamford Bridge and the player was key for his side as he led them to the Premier League title in the 16/17 season.