Beşiktaş player Bernard Mensah tested positive for the novel coronavirus on Wednesday, the Turkish football club said.
This came as Mensah underwent a routine COVID-19 test in Istanbul, Beşiktaş said in a statement.
The 25-year-old midfielder was in the Ghanaian national team camp this week.
Beşiktaş signed Mensah from another Turkish Super Lig club Hes Kablo Kayserispor in August.
The former Vitoria Guimaraes player had four appearances for Ghana.