Kaboul, left, joins fellow new signings Bent and Bale at Spurs

Spurs appear to have beaten off tough competition to land the 21-year-old centre-back with Roma, Inter Milan and Portsmouth linked to the player.

"If you ask people in France who is seen as the hottest prospect in defence they will say Younes Kaboul," Spurs boss Martin Jol told the club website.

"It's important to have quality players in defence and with him, we have that."

Jol's willingness to field young players appears to have swayed Kaboul's decision.

His personality made a big impression on Martin and myself Spurs sporting director Damien Comolli

The French Under-21 captain follows close friend and Arsenal midfielder Abou Diaby, who joined the Gunners from Auxerre in 2006, to the Premiership.

"Younes possesses power, great pace and is good on the ball and strong in the air," said Spurs sporting director Damien Comolli.

"He is a good leader who showed a great desire to come to us despite interest and offers from numerous other clubs.

606: DEBATE Your thoughts on Kaboul's signing

"From day one he said 'I want to play for Spurs' and his personality made a big impression on Martin and myself.

"He has been a regular in the Auxerre first team for the past two seasons and is an excellent signing."

Tottenham have been one of big spenders of the summer as they have already signed Gareth Bale for up to �10m and striker Darren Bent for �16.5m.

Kaboul has added to their expenditure but they could recoup some of their outlay if they decide to sell right-back Pascal Chimbonda, who is reportedly a target for Chelsea.