During the season, he also received 14 yellow cards in all competitions, second to only Siaka Tiéné of Valenciennes in the league. For his efforts, he was nominated for the Ligue 1 Young Player of the Year award and awarded a contract extension until 2013 by his club. During the 2009–10 season, Capoue appeared regularly in the first team and drew interest from Italian club Lazio and Premier League clubs Liverpool and Arsenal. On 26 November 2009, Toulouse responded to the interest by reaching an agreement with Capoue on a one-year contract extension until 2014. Capoue appeared in 41 total matches for the season collecting 17 total yellow cards, 13 of which came in Ligue 1, leading all players. In July 2013, Toulouse accepted a reported £9.5 million bid from Premier League side Cardiff City. However, personal terms were not agreed and the deal was not finalised. On 15 August 2013, he completed an €11m (£9.3m) transfer to Tottenham Hotspur. On 15 August 2013, Tottenham Hotspur officially announced the signing of Capoue. The day before the announcement of Capoue, Tottenham and France's first choice goalkeeper, Hugo Lloris told French paper L'Equipe that joining Tottenham is a big step in Capoue's career. He stated his delight to see the fellow countrymen join Tottenham. Capoue made his debut for Spurs on 18 August 2013, replacing Mousa Dembélé in a 1–0 win away to Crystal Palace at Selhurst Park. On 6 July 2015, Capoue joined newly promoted Watford for a reported club-record transfer fee of £6.3 million (€9 million). He began his second season at Watford with four goals in his first six games, including the opening goal against Manchester United in a 3–1 win at Vicarage Road and another in a 4–2 comeback win against West Ham United. In May 2019 he was named as Watford's Player of the Year for the 2018–19 season. Capoue was eligible to play for Guadeloupe, due to his father being from there. Capoue has been active with France on the youth level. He has received caps with the under-18 and under-19 teams. Capoue made his youth international debut with the under-18 team on 14 March 2006 in a 2–1 victory over Germany. He finished the under-18 campaign with four appearances. He made his debut with the under-19 team at the 2006 edition of the Sendaï Cup in Japan in the opening match against the Tōhoku region national team.