Beşiktaş were held to a 1-1 draw against Gaziantepspor at the Osmanlı stadium.
The Black Eagles took an early lead when Jose Sosa scored from a fifth minute free-kick.
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Chibuike equalised just before half-time to level the scores at the break.
Beşiktaş were unable to regain the lead in the second half and ended up finishing the week third in the Süper Lig, despite starting the round as leaders.
BEŞİKTAŞ 1-1 GAZİANTEPSPOR
STADIUM: Osmanlı Stadı
REFEREE: Tolga Özkalfa
BEŞİKTAŞ: Günay Güvenç, Serdar Kurtuluş, Sivok, Ersan Gülüm (min. 86 Oğuzhan Özyakup), Motta, Hutchinson, Tolgay Arslan (min. 81 Cenk Tosun), Gökhan Töre, Sosa, Olcay Şahan (min. 67 Mustafa Pektemek), Demba Ba
MANAGER: Slaven Bilic
GAZİANTEPSPOR:Eray Birniçan, Barış Yardımcı, Arokoyo, Vranjes, Şenol Can, Grando, Erdem Şen, Chibuike, Mustafa Durak (min. 65 Oğuzhan Türk), Camara (min. 79 Dos Anjos), Muhammet Demir (min. 90+2 Abdülkadir Kayalı)
MANAGER: Okan Buruk
GOALS: min. 7 Sosa (Beşiktaş), min. 42 Chibuike (Gaziantepspor)
RED CARD: min. 82 Chibuike (Gaziantepspor)
YELLOW CARDS: min. 22 Serdar Kurtuluş, min. 37 Sivok, min. 83 Cenk Tosun, min. 90+3 Gökhan Töre (Beşiktaş), min. 50 Vranjes, min. 59 Mustafa Durak, min. 70 Arokoyo, min. 73 Oğuzhan Türk, min. 77 Camara, min. 90+1 Eray Birniçan (Gaziantepspor)