of
F.C. Porto fighting Kayhan for the ball in an UEFA Europa League match in 2010. Kayhan began his career 1999 with Rapid Wien Amateur and was promoted to the first team in November 2008 from and made his debut on 15 November 2008 against
LASK Linz. On 30 January 2010 left
SK Rapid Wien on loan to
SC Wiener Neustadt, he will return on 30 June 2010. He signed a two-year deal with Göztepe SK in June 2016. On 30 August 2018, he has signed 2-year contract with
Adana Demirspor. However, due to an
anterior cruciate ligament injury a week after his arrival, he never played an official game for the club, before leaving the club in March 2020. In May 2020, Kayhan was also operated for a
articular cartilage damage.
Later career In February 2021, Kayhan returned to Austria when he signed with
SV Stripfing. However, he was injured with an anterior cruciate ligament injury and was therefore, at the time of the announcement, not fit to play or train at all. He later also revealed, that he never signed a specific agreement with the club and he never really appeared on the teamlist for them. In January 2023, Kayhan started as an assistant coach for
Admira Wacker's U-16 team. At the same time, around August 2024, Kayhan also played a single league game for
SC Ostbahn XI, as well as a few friendlies; a club that his brother, Coskun, was managing at the time. ==International career==