Tomáš Kalas

Chelsea

Early career

Born in Olomouc, Kalas started his career in his hometown with Sigma Olomouc, making his debut in a 2–0 victory over Slovan Liberec on 5 May 2010. He then signed for Premier League champions Chelsea, on 7 July 2010, for a reported figure of around £5.2 million, although it was agreed that he would stay at Sigma Olomouc for the 2010–11 season. Kalas arrived at Chelsea for the second half of the 2010–11 season and made his Chelsea reserve team debut in a 2–2 away draw to Aston Villa on 21 February.

Loans to Vitesse

On 22 August 2011 Kalas joined Dutch football club Vitesse Arnhem on loan for the 2011–12 season. He was given the number 2 jersey. He made his debut for Vitesse on 17 September 2011 against Roda JC Kerkrade which ended in a 5–0 win for Vitesse. In March 2012, Kalas admitted that he did not yet know where he will be playing next season, but was happy on loan at Vitesse. "Ideally, I'll stay another year at this club." he told. "Simply put, there are three options. I'll stay here, go back to Chelsea or they will loan me to another club abroad. In late March I will talk with my managers about next season and know more." On 17 May 2012, Kalas scored the opening goal in the 22nd minute, for Vitesse against RKC Waalwijk; the match ended in a 3–1 win for Vitesse. This goal was Kalas' first goal of his professional career. On 11 July 2012, Kalas rejoined Vitesse on another loan until the end of the 2012–13 season. He…

Youth

Kalas made his debut for the U-17 on 5 September 2009 coming on as a 61st-minute substitute in a European Under-17 Championship Qualifying match against Belarus which the Czechs won 1–0. He went on to be picked for the final tournament. He played 65 minutes of his 9th appearance, against Greece, before being sent off.

Senior

Kalas debuted for the Czech senior squad in a 3–0 friendly victory against Slovakia at his hometown's Andrův stadion on 14 November 2012, coming on as a substitute for David Limberský in the 74th minute. Kalas was included in the squad during the Euro 2016 qualifiers. On 13 October 2015, he came off the bench replacing Josef Šural, resulting in a 3–2 victory for the Czech Republic.

Club

As of 5 July 2026

International

Scores and results list Czech Republic's goal tally first, score column indicates score after each Kalas goal.

Chelsea Youth

Premier Reserve League: 2010–11 Professional U21 Development League: 2013–14 Middlesbrough

Football League Championship runner-up: 2015–16 Fulham

EFL Championship play-offs: 2018 Czech Republic U19

UEFA European Under-19 Championship runner-up: 2011