Beşiktaş cemented their hold on the top spot in Turkey's Süper Lig with a 0-1 win over Istanbul rivals Galatasaray on Sunday night.
The victory extended their lead over second-placed Fenerbahçe, who play Monday night, to six points.
German striker Mario Gomez scored in the 77th minute at Galatasaray's Türk Telekom Arena Stadium.
Beşiktaş now lead on 76 points.
Fenerbahçe face fourth-placed Medipol Başakşehir away on Monday, when third-placed Torku Konyaspor host Kaşımpaşa.