Spurs have signed former England Under 19 goalkeeper Ben Alnwick from Sunderland.
Marton Fulop who has been on loan at the Stadium of Light since November has moved in the opposite direction.
Tottenham's Sporting Director Damien Comolli said: "We were very pleased to bring another young and talented prospect to the club. Ben showed great motivation and desire to join us and was excited to be part of our future."
Source: TottenhamHotspur.com