Turkish football club Galatasaray on Friday reported that two of its players had tested positive for COVID-19.
"Two players tested positive," the Istanbul club said on Twitter, adding that all its players, technical and health staff, and employees had been tested after returning from a recent holiday.
The club did not give the names of the infected players.
It added that the players did not require hospitalization but that their isolation and treatment process had begun, without giving further details.
On Thursday, one player and a technical staff member at Galatasaray's archrivals Fenerbahçe tested positive for COVID-19.
The Turkish club said treatment began for those infected.
This June, Turkey's top-tier Super League resumed play after a three-month break due to the coronavirus pandemic, playing at empty stadiums and using a host of safety measures to protect all those involved.