Celaleddin Koçak is a Turkish

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

 footballer who plays for Diyarbakırspor

Diyarbakirspor

Diyarbakırspor is a professional Turkish football club located in the city of Diyarbakır. Formed in 1968, Diyarbakırspor are nicknamed Diyar...

 in the Turkish Süper Lig.

He began his career at Tennis Borussia Berlin

Tennis Borussia Berlin

Tennis Borussia Berlin is a German football club based in Berlin-Westend.- History :The team was founded in 1902 and takes its name from its origins as a tennis and ping-pong club. "Borussia" is a Latinised version of Prussia. In 1903 the club took up football and quickly developed a rivalry with...

 but found little success there. Like many young footballers born to Turkish immigrant parents in Germany, he tried his chances by joining a Turkish team. In December 1999, he decided to join Altay S.K. of İzmir

Izmir

Izmir is a large metropolis in the western extremity of Anatolia. The metropolitan area in the entire Izmir Province had a population of 3.35 million as of 2010, making the city third most populous in Turkey...

. Six months later he had been impressive enough to earn a place at Süper Lig side MKE Ankaragücü. He stayed there for two years, joining Diyarbakırspor

Diyarbakirspor

Diyarbakırspor is a professional Turkish football club located in the city of Diyarbakır. Formed in 1968, Diyarbakırspor are nicknamed Diyar...

 in 2002. Here he helped the newly promoted side to remain in the top division.

In summer 2003, Koçak joined Malatyaspor

Malatyaspor

Malatya SK is a Turkish sports club based in Malatya, mainly concentrated on football. Malatyaspor are currently playing in the TFF Third League. Previously their colors were yellow and black . They played in First League for 11 seasons. They are the first and only team located in Eastern Anatolia...

 and it was here that he really made a name for himself. As well as helping Malatyaspor to a mid table place, he was particularly impressive in their performances in the UEFA Cup

UEFA Cup

The UEFA Europa League is an annual association football cup competition organised by UEFA since 1971 for eligible European football clubs. It is the second most prestigious European club football contest after the UEFA Champions League...

.

The next year, he joined Ziya Doğan, who had brought him to Malatyaspor a year earlier, at Trabzonspor. Again, he established himself in the team from the beginning and became a regular as Trabzonspor finished as runners up in the league.

Koçak in a left sided player who can alternate between defence and midfield. At Trabzonspor

Trabzonspor

Trabzonspor is a professional Turkish football club located in the city of Trabzon, Turkey. Formed in 1967 through a merger of several local clubs, Trabzonspor won six championships in Turkish Super League. The Club won their first Championship title in 1975 which is also the Club's initiation year...

, he was used primarily in defence. His abilities lie in his power and speed which help him to make forward runs as well as defending effectively.