Iceland are on the brink of qualifying for their first World Cup after a comprehensive victory in Turkey.
Turkey captain Arda Turan says he has retired from international football following allegations he abused a journalist.
Austria says any plans by the Turkish leader to campaign for his upcoming referendum could cause divisions.
Prosecutors issue an arrest warrant for one of Turkey's best known sportsmen, ex-football international Hakan Sukur, state media say.
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Turkey finish third in Group D to keep their slim chances of qualifying for the last 16 alive after a 2-0 win over the Czech Republic.