Celta Vigo coach Paco Herrera has hailed the form of striker Iago Ascas.

The 25 year-old's performances this term have attracted the interest of Swansea City.

Former Liverpool coach Herrera said: "Every day we are surprised with his genius. It is difficult to put a ceiling on him. If he continues at this pace and with this progression, Celta will have a great player."