Craig Gardner has valued Birmingham team-mate Ben Foster as a bargain signing at £6 million and believes he should be England's No. 1.
Foster will return to the scene of his Carling Cup semi-final blunder for the Premier League clash with West Ham at Upton Park on Sunday. But it was a rare mistake by the former Manchester United keeper since his summer move from Old Trafford to St Andrew's.
Foster has been in outstanding form and midfielder Gardner feels he is worth more than three times what Blues paid for his services.
''Ben is different class. He is one of the best signings about by far,'' Gardner said. ''He has been brilliant from day one for Birmingham and is a really nice lad.
''He is a great professional, different class, and he should be England's No. 1. We paid £6 million for him but he would have been a bargain at £20 million. He is a top-class keeper and a top-class lad.''