Manchester United are believed to be lining up a £30 million bid for Athletico Madrid superstar Sergio Aguero.
The Red Devils have been monitoring Aguero for some time, and their scouts saw the frontman score in Argentina's 3-2 victory in Russia.
Sir Alex Ferguson had previously stated that his summer business was over, but the Old Trafford side will struggle to cover the goals of Cristiano Ronaldo and Carlos Tevez without the addition of another striker the calibre of Aguero.
Athletico are believed to want around £45 million for the striker, a probable stumbling block for the 21-year-old striker who scored 17 goals in La Liga last year.
United don't have an issue with cash however, after the £80 million sale of Ronaldo earlier in the summer. Chelsea, Juventus and Inter Milan are also interested in the player known as 'Kun' Aguero.