Ajax's Frank de Boer confirms Manchester City interest in Jan Vertonghen

The Belgium international has been in impressive form for the Eredivisie giants and his good performances haven't gone unnoticed at Eastlands
Ajax coach Frank de Boer has confirmed that Premier League side Manchester City have shown an interest in signing centre-back Jan Vertonghen.

City manager Roberto Mancini is looking to add a left-footed defender to his squad in the summer transfer window, and sees Vertonghen as an ideal addition.

The Italian tactician visited the KNVB Beker final between Ajax and Twente on Sunday and was allegedly impressed with the Belgium international's performance.

De Boer admitted that he had been made aware of Mancini's presence at the match, telling De Telegraaf: "[Assistant coach] Danny Blind told me that Mancini was at the stadium and I know that Manchester City are interested in signing him. One and one is two."

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The 24-year-old stopper is a product of the Germinal Beerschot youth academy, and after joining Ajax at the age of 16, he has since made over 100 official appearances for the Amsterdam giants.

Vertonghen's current contract runs until the summer of 2013, and an offer in the region of €15 million could be required to lure him to England.

The defender has previously been linked with clubs such as Arsenal and AC Milan, and the player himself recently revealed that he's ready to take the next step in his career.