Chelsea have reportedly failed in an initial attempt to sign Racing Genk goalkeeper Thibaut Courtois.
According to Metro, the Blues have had on offer of £3.6 million rejected for the 19-year-old, who has been identified as an eventual successor to incumbent gloveman Petr Cech.
Chelsea will now have to consider whether or not to increase their original bid for the Belgian, who made 40 appearances for Genk last season in the Pro League.
The acquisition of Courtois would be small fry compared to the grander plans of new Chelsea boss Andre Villas-Boas, who hopes to have full control over transfers going forward, unlike his predecessor Carlo Ancelotti.
Although he would not comment on Chelsea targets, Villas-Boas claimed he has his sights set on a number of top-quality additions - with former charge Falcao thought to be high on his list.
"We are able to go for the best in the market when we want, and we are able to find the best talent when we want," Villas-Boas told the assembled press at Stamford Bridge.
"Everyone wants to come here.
"We have to bring the best quality players if we decide to bring them. There are no players imposed on me."
Chelsea are also thought to be planning big money moves for Santos starlet Neymar, Argentina international Javier Pastore, as well as Real Madrid target Fabio Coentrao.
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