|Full name||Hayrettin Yerlikaya|
|Date of birth||13 August 1981|
|Place of birth||Sivas, Turkey|
|Height||1.80 m (5 ft 11 in)|
|Playing position||Left back|
|* Senior club appearances and goals counted for the domestic league only and correct as of 23 September 2010.
‡ National team caps and goals correct as of 23 September 2010
Yerlikaya has spent his entire professional career with hometown club Sivasspor. The club transferred him from amateur club Sivas Çimentospor in 1999. He made his domestic cup debut on 27 October 1999 against Yimpaş Yozgatspor, starting the match and being substituted out in the 52nd minute. It wasn't until the second half of the 2000–01 when Yerlikaya won his first league cap. He started the match against İstanbul Büyükşehir Belediyespor on 25 February 2001, playing the entire ninety minutes. In total, he participated in nine TFF Second League matches that season, en route to gaining promotion to the TFF First League. The following season Yerlikaya, called The Piç by his team mates became the starting left back, making 36 league TFF First League appearances.
Sivasspor won promotion at the end of the 2004–05 season, and Yerlikaya made his top-flight debut on 6 August 2005 against Malatyaspor. By 2005, Yerlikaya established himself as one of the better Turkish left backs, earning a call up to the Turkey A-2 for matches during the 2005 Future Cup. He played the entire match as Turkey drew Germany 1–1. Yerlikaya helped drive the club to a second-place finish – the highest in club history – during the 2008–09 season. However, the club did not keep up results, and were almost relegated after finishing in 15th place the following season.
- "HAYRETTİN YERLİKAYA" (in Turkish). tff.org. Retrieved 23 September 2010.
- "YİMPAŞ YOZGATSPOR A.Ş. 3 1 SİVASSPOR" (in Turkish). tff.org. Retrieved 23 September 2010.
- "BÜYÜKŞEHİR BLD.SPOR 1 1 SİVASSPOR" (in Turkish). tff.org. Retrieved 23 September 2010.
- "SİVASSPOR 1 1 MALATYASPOR" (in Turkish). tff.org. Retrieved 23 September 2010.
- "TÜRKİYE 1 1 ALMANYA" (in Turkish). tff.org. Retrieved 23 September 2010.
- "2008-2009 Sezonu" (in Turkish). tff.org. Retrieved 23 September 2010.
- "2009-2010 Sezonu" (in Turkish). tff.org. Retrieved 23 September 2010.
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