Have Barcelona asked Valencia about signing Paco Alcacer?

Barcelona's signing of a fourth forward is imminent and the rumours have spread far and wide. The latest is Paco Alcacer, Valencia forward, who fits the profile Barcelona want. 

Curiously, Los Che's owner, Peter Lim, and president Lay Hoon, have been in Barcelona in the last few hours, setting off alarms in Valencia. Alcacer is 22 and has a release fee clause of 80 million euros. Valencia say he is not transferable but there is a good relationship between them and Barcelona.

Alcacer had a troubled season last year but still had offers to leave in the summer. The latest came from Villarreal after Roberto Soldado's injury.