In the summer of 2006, Assou-Ekotto moved to Tottenham Hotspur for an undisclosed fee, though estimated to be in the region of £3.5 million by the media. Manager Martin Jol and club sporting director Damien Comolli described him as one of the brightest prospects in French football at that time. Assou-Ekotto was expected to provide competition with South Korean Lee Young-pyo at the left-back position, but his performances in pre-season secured him a place in the starting line-up ahead of Lee. Assou-Ekotto made his full debut in a 2–0 defeat at Bolton Wanderers on the opening day of the 2006–07 FA Premier League season and looked to have unseated Lee until he picked up a knee injury in December. He then appeared to have lost his place to Lee and played just two matches throughout the entire 2007–08 season due to another injury.