Sam Allardyce is hoping the arrival of Barcelona midfielder Alex Song will help improve his current players.

The former Arsenal midfielder completed a sensational move to Upton Park on Saturday and was unveiled to the crowd before kick-off.

He becomes the cherry on the cake for Allardyce after he managed to lure Enner Valencia and Mauro Zarate among others to the club.

However the game did not really go to plan with the Hammers’ going down 3-1 to Ronald Koeman’s Southampton.

But Allardyce is hopeful that the Cameroon international can help inspire his lackluster squad after their second home defeat in a row.

Allardyce said: “He’s brilliant, but he’ll be wondering what he’s come to after watching that performance today. We’ve brought in a quality player and the players here are going to get better with him.

“It’s a massive wake-up call to these guys. We were not 100 per cent today in lots of areas. When that happens, you have got have resilience and determination.

“The way Southampton got in front was not through stunning, passing football it was through a lapse of concentration on two set-pieces that let them.”