Football Transfer Rumours - Sep-25-2008

Middlesbrough will have to outbid Ajax if they are to sign Standard Liege midfielder Steve Defour in January

Celtic are ready to make a £750,000 bid for 23-year-old Swiss star Sandro Burki after the Aarau midfielder visited Glasgow last week

Liverpool are set to make a £15m offer for Tottenham's Welsh defender Gareth Bale in January

Birmingham are set to sign Scotland midfielder Nigel Quashie on loan from West Ham

City were due to have two scouts watching Aguero play against Getafe on Wednesday and will bid £40m for him in January

Manchester City are ready to bid £48m for Athletico Madrid's Argentine start Kun Aguero to trigger a release clause in his contract