Manchester United are stepping up their interest in Barcelona winger Isaac Cuenca. El Mundo Deportivo says United chief scout Martin Ferguson was at Camp Nou last night watching Barcelona crush Osasuna in the Copa del Rey.

Ferguson was watching 20-year-old winger Cuenca.

He is out of contract in the summer and could sign on a Bosman this month for a team outside of La Liga. The youngster is said to want to stay with the European champions.