Kaboul played his first game for the club, starting the whole game, in a friendly against St. Patrick's Athletic on 12 July 2007. He made his Premier League debut starting alongside Anthony Gardner in the centre of defence in a 1–0 loss against Sunderland on the first day of the 2007–08 season. In a follow–up match against Everton, however, Kaboul suffered a hamstring injury and was substituted in the 18th minute, as Tottenham Hotspur lost 3–1. After missing out two matches, he returned to the starting line–up against Fulham on 1 September 2007 and scored his first goal for the club, in a 3–3 draw. Kaboul scored again on his European debut for Tottenham Hotspur, on 20 September 2007, netting the first goal in a 6–1 win over Anorthosis Famagusta. Two weeks later on 1 October 2007, on the club's 125th anniversary, Kaboul scored the equalizer late in stoppage time against Aston Villa to pull Tottenham level at 4–4 and complete a remarkable comeback from 4–1 down. Since joining Tottenham Hotspur, he rotated in the centre–back position with other centre–back defenders. However, Kaboul produced numerous errors that saw him out of the team period on three separate occasions since the appointment of Juande Ramos. He made a comeback to the side away to Derby County on 8 February 2008 saw him score his fourth goal of the season. Kaboul came on as a 102nd-minute substitute for Robbie Keane as Spurs beat Chelsea 2–1 in the 2008 Football League Cup Final at Wembley Stadium on 24 February 2008. However, his return was short–lived when he suffered a knee injury and never played for the club for the rest of the season. In April 2008, Kaboul criticised Ramos for not giving him a chance to play in the first team. Overall, he made 29 appearances for Tottenham Hotspur in his initial spell at the club, adding four goals.