Cameroonian midfielder Alex Song has left Barcelona to join West Ham on a season-long loan. Photo: Gustau Nacarino

London - West Ham will look to complete a season-long loan deal for Alex Song this weekend.

The Barcelona midfielder has been told he can leave the Nou Camp ahead of Monday’s transfer deadline, and the Hammers are in talks with the former Arsenal man about a temporary switch to Upton Park.

Manager Sam Allardyce was growing increasingly confident of landing Song last night after the Hammers made good progress towards a deal on Friday.

Sportsmail understands Song is on standby to travel to London this weekend to complete his move to east London once a deal is finalised.

The Hammers are remaining understandably cautious, with a number of clubs across Europe understood to be interested in the 26-year-old Cameroon international.

But following successful talks, the Hammers are hopeful of completing the signing.

Song’s arrival could spell the end of Mohamed Diame’s stay at the Hammers.

Diame is wanted by Queens Park Rangers manager Harry Redknapp, and Song’s signing may see the powerful midfielder deemed surplus to requirements.