Belgium's Jan Vertonghen.

London – Tottenham Hotspur confirmed Thursday they had completed the signing of Jan Vertonghen from Dutch giants Ajax after the centre-half passed his medical.

The 25-year-old, who captained the Amsterdam club, had agreed terms with the London side on Sunday.

Tottenham, in a statement on their Twitter feed, said Thursday:

“We are delighted to announce that Jan-Vertonghen has completed his transfer from Ajax after passing his medical.”

Vertonghen will bolster a Spurs central defence weakened by the departures of long-serving former captain Ledley King and Ryan Nelsen.

The 25-year-old is the second signing of Andre Villas-Boas' short tenure as Spurs boss so far after Icelander Gylfi Sigurdsson agreed a move to White Hart Lane. – Sapa-AFP