|Full name||Sead Kolašinac|
|Date of birth||20 June 1993|
|Place of birth||Karlsruhe, Germany|
|Height||1.83 m (6 ft 0 in)|
|Playing position||Left back|
|2009–2010||TSG 1899 Hoffenheim|
|2012–2013||Schalke 04 II||7||(2)|
|2013–||Bosnia and Herzegovina||6||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 11 May 2014.
† Appearances (Goals).
Kolašinac began his career in his hometown club, Karlsruher SC. After eight years of playing for Kalsruhe, he joined TSG 1899 Hoffenheim, where he played a season, after being bought by VfB Stuttgart. His stay at Stuttgart was short-lived, and a season after, he joined Schalke 04.
After spending a season with the youth team, Kolašinac was promoted to the second team, Schalke 04 II, in one of the German lower leagues, Regionalliga West. After playing seven matches and scoring two goals for Schalke 04 II, he was promoted to the first team. On 15 September 2012, he made his Bundesliga debut in a 2–0 win over Greuther Fürth. In December 2012, he played in his first game in European competitions, which was a 1–1 draw against Montpellier, in the UEFA Champions League.
In May 2011, he made his international debut for the Germany U18 team in the match against Austria. After this match, he was promoted to U19 level. For U19 team, he made 11 appearances and scored one goal in 2011–12 period, and then he was promoted to U20 level. Kolašinac made two appearances and scored a goal for Germany U20 team.
Bosnia and Herzegovina
After playing his youth career for Germany, Kolašinac switched allegiance to his parents' homeland Bosnia and Herzegovina and received a call up for the country's senior national team in 2013. His father stated in an interview that was always the player's first choice to play for the Bosnian national team. On 18 November 2013, Kolašinac made his debut for Bosnia in the 2–0 friendly loss against Argentina. He was named in Bosnia's squad for the nation's first ever FIFA World Cup appearance, the 2014 tournament held in Brazil. In the third minute of the team's opening group match, Kolašinac scored an unfortunate own goal (the fastest in the history of the FIFA World Cup) as Argentina ran out 2–1 winners at the Estádio do Maracanã.
Kolašinac was born in Karlsruhe, Germany, to Bosniak parents. His father, Faik, works at a Mercedes factory. Faik was born in Nikšić, SR Montenegro, to parents from Plav, SR Montenegro; the family moved to Čapljina, SR Bosnia and Herzegovina in 1969, where Faik met his wife. The family, including Sead, is practising Islam. He was given Bosnian citizenship in 2013 and decided to play for the Bosnian national team.
- "Sead Kolašinac". bundesliga.com. Retrieved 9 November 2012.
- "Sead Kolašinac". worldfootball.net. Retrieved 9 November 2012.
- "Kolašinac faz história ao marcar o gol contra mais rápido de uma Copa" (in Portuguese). Lancenet!. 15 June 2014. Retrieved 15 June 2014.
- "Arg 2-1 Bos-Herce". BBC. 16 June 2014. Retrieved 16 June 2014.