Tobias Albertine Maurits “Toby” Alderweireld (born 2 March 1989) is a Belgian professional footballer who plays for Tottenham Hotspur and the Belgium national team. Mainly a central defender, he can also play as a right back.
Born in Antwerp, Alderweireld moved to Ajax’s youth academy in August 2004 from Germinal Beerschot. On 22 February 2007, he signed his first professional contract tying him to the club until 30 June 2010. He was promoted to the first team for the 2008–09 season but only made his first team debut on 18 January, in the 4–2 victory over NEC Nijmegen. On 26 February, he made his European debut during a 1–1 draw against Fiorentina in the UEFA Cup. Although he only made several appearances for the remainder of the season, he was awarded a new long-term contract extension until 2014.
On 2 September 2013, Alderweireld joined Atlético Madrid on a four-year contract for an estimated €7 million (£6.16 m) transfer fee. He played 12 matches as the club won La Liga; on 11 May, he headed his only goal of the season, an equaliser in a 1–1 home draw with Málaga CF in the penultimate round of fixtures, ensuring that Atlético remained in the title race. Alderweireld played the final seven minutes and extra time of the 2014 UEFA Champions League Final for Atlético in place of Filipe Luís; the team were beating rivals Real Madrid 1–0 when he entered the field of play but eventually lost 1–4.
He was loaned to Southampton, on 1 September 2014, with the option for Southampton to buy him at the end of the season. He made his Southampton debut on 13 September, helping to keep a clean sheet in a 4–0 defeat of Newcastle United. On 26 December, he scored his first goal for the club, Southampton’s third in a 3–1 away win away to Crystal Palace by heading James Ward-Prowse’s corner kick.
Southampton had a £6.8 million option to buy Alderweireld, but in July 2015 Atlético cancelled the clause for £1.5 million in order to sell to the highest bidder. Subsequent reports claimed that Atlético failed to exercise their buy-out in time.
On 8 July 2015, Alderweireld joined Tottenham Hotspur on a five-year contract which runs until the summer of 2020 at White Hart Lane despite Southampton threatening legal action over the transfer. The transfer fee is estimated to be £11.5 million. He was reunited with former Ajax teammates Christian Eriksen and Jan Vertonghen, who previously joined the north London side from Ajax.
On 30 July, Alderweireld made his club debut in the 2015 MLS All-Star Game in Denver, Colorado. During a 2–1 defeat, Alderweireld started the game and was replaced by Federico Fazio after 62 minutes.
A full international since 2009, he has earned over 60 caps for Belgium and represented the country at the 2014 FIFA World Cup.