Chelsea aim to sign Brazilian prodigy Alexandre Pato in a £40million deal - but not until next summer. Carlo Ancelotti and the Stamford Bridge hierarchy have earmarked the 19-year-old striker as the man to supply the missing link in the Italian's masterplan to become Europe's dominant force. But the Blues know AC Milan cannot sell the South American in the same transfer window that they have banked £56m from Real Madrid for Kaka. Chelsea have let Milan know they are ready to wait until enough time has passed for the San Siro club to do a deal for the teenager - who turns 20 next month. And the Blues are convinced San Siro owner Silvio Berlusconi is prepared to sell when the time is right and that Pato is equally keen to link up with Ancelotti again. The likelihood, however, is that Chelsea's spending for this summer is now over at a total outlay of £22m plus the tribunal assessed figure for Daniel Sturridge. Ancelotti has only recruited Sturridge, £18m Yuri Zhirkov, Ross Turnbull and Serbian youngster Nemanja Matic. Despite claims from Spain, Chelsea were not seriously interested in Atletico Madrid's Sergio Aguero, even before the Argentine played in the Champions League qualifier against Panathinaikos, and certainly not once the striker demanded £200,000 per week. They were - and remain - keen on Franck Ribery but do not believe the French flier is worth more than £40m, let alone the £70m-plus Bayern Munich wanted for a player who is keen to join the trail to the Bernebeu next year. Pato, however, is seen as the next step for Ancelotti and his side to make significant progress when his capture can be confirmed.