Porto's Mexico star Hector Herrera is interesting Arsenal.

Herrera is expected to leave Porto after the World Cup as Europe's biggest clubs circle.

Correio da Manha says Arsenal are now showing an interest in Herrera, who has impressed in Russia this summer.

West Ham, Everton and Roma have all been linked with Herrera, who plays his club football for Porto.

Porto are believed to be looking for around £15m for Herrera.