Aimar is disillusioned at Valencia and has issued a 'come-and-get-me' plea to former boss Rafael Benitez.
However, Claudio Ranieri believes that Aimar will not be able to adapt to the fast-paced rough and tumble of the Premiership.
He said: "Aimar could not play three games in one week because he weighs just 60 kilos. It is important to have players who are strong. Who are ready to fight."