Unai Emery says Juan Foyth wants to stay at Villarreal but knows he could join Barcelona before the transfer window closes.

Barca have targeted defender Foyth after missing out on Cesar Azpilicueta, who decided to stay at Chelsea.

Villarreal vice-president Jose Manuel Llaneza warned the Catalan giants they would have to meet the €42million release clause in order to sign the Argentina right-back.

Emery reiterated that former Tottenham full-back Foyth is not looking to leave, but the Villarreal head coach accepts there are no guarantees he will stay.

"Barca's interest is real," Emery told Cadena SER's 'El Larguero'. "It's a position they need and it fits for them. The issue is whether the player wants it or not, he has always told me that he is very happy.

"He does not contemplate leaving and wants to stay. From here, I don't know to what extent circumstances will go one way or the other.

"He's an important player for us and he's grown a lot in recent years. I don't rule out that at any given moment the surprise will be against us, but the most normal thing is that he stays at Villarreal."

Emery is hoping to add to his squad by signing striker Edinson Cavani, who is also wanted by Valencia.

The former Paris Saint-Germain and Arsenal boss said: "I spoke to Edinson Cavani – we have a good relationship, he wants to come to Spain. It's possible."