Mundo Deportivo says United chiefs are seeking to add youth to their midfield options and Casado is on the radar.
Advertisement
Advertisement
Indeed, United have made an approach in recent days to Barca about Casado's price.
The midfielder is also interesting Atletico Madrid, which have just sold Conor Gallagher to Tottenham.
Barca, which are juggling their Financial Fair Play issues, could be prepared to sell Casado to make room for their own planned additions in January.