Bešić made his full international debut in 2010, and is the youngest player ever to represent Bosnia and Herzegovina. He also played for his national team at the 2014 FIFA World Cup.
Born in Berlin to Bosnian parents, Bešić joined local club Tennis Borussia Berlin at the age of 14, where he remained until he was 16, when he signed for Hamburger SV. On 4 November 2010, Bešić extended his contract with Hamburg until 1 July 2013. After being named as a substitute in several matches in the 2010–11 season, he received his debut in the Bundesliga against Borussia Dortmund on 12 November. Bešić came on a substitute in the 80th minute when Dortmund was already leading 2–0. He started his first Bundesliga game against Borussia Mönchengladbach, and played all 90 minutes as they won 2–1.
In March 2012, Bešić was suspended from the first team, due to lack of discipline, Bosnian media also claimed that manager Thorsten Fink "strangled" Bešić and threw him out of the dressing room.
In 2012 Bešić was signed by Hungarian club Ferencváros. In his first season, he played in a 5–1 win over Videoton on 24 April in the Ligakupa final. On 12 July 2013, Bešić prolonged his contract with Ferencváros.
On 28 July 2014 Bešić signed a five-year contract with Everton for a fee of £4 million. Having been an unused substitute in their first two games of the season, he made his first Premier League appearance on 30 August against Chelsea, replacing Romelu Lukaku in the 89th minute; however he made a defensive error which allowed opponent Diego Costa to score the final goal in a 3–6 home defeat for Everton. Bešić made his first start for Everton in the Merseyside derby on 27 September, being substituted after 80 minutes for Samuel Eto'o as the team drew 1–1 away to Liverpool.
His second season at Everton was plagued by hamstring injuries, which limited his appearances and playing time. In February 2016 he was voted Everton's Player of the Month for January and extended his contract until 2021.
Bešić claimed in an interview that he had declined an offer to play for Germany national football team at youth level, because he only wished to play for Bosnia and Herzegovina national football team. He made his debut for the Bosnia and Herzegovina under-21 team in September 2010 against Italy under-21. On 5 November 2010, he was called up to the senior team by Safet Sušić for the friendly game on 17 November 2010 with Slovakia. He made his debut in the match, thereby becoming the youngest player to ever play for Bosnia and Herzegovina. The record was previously held by Miralem Pjanić.
Bešić has many tattoos, his first being the word Bosanac (Bosnian). He also tattooed names of his parents and brother. He is a Muslim; along with international team mates Vedad Ibišević and Edin Višća he visited a mosque in Cuiabá during the 2014 FIFA World Cup. On 4 July 2013, he became the Bosnian ambassador for the Emmaus charity organisation.
Style of play
Bešić was described by Everton manager Roberto Martínez as a "very complete footballer", who "has got a very natural balance about knowing that he can be strong and aggressive but in the same way he's a technical player on the ball."
- As of match played 20 April 2016.
|Hamburger SV II||2010–11||Regionalliga Nord||23||0||–||–||–||23||0|
|Ferencváros||2012–13||Nemzeti Bajnokság I||22||1||1||0||4||0||–||27||1|
|2013–14||Nemzeti Bajnokság I||25||0||2||0||6||0||–||33||0|
- As of match played 29 May 2016.
|Bosnia and Herzegovina|