De Pae and left-back Mendi are reported to have clashed, while Fergie and centre-back Marcelo have also had physical clashes.
The four players did not start in Lyons 1-2 defeat against Nantes. French media said four people clashed before the match. Mendi missed the game because of injury, and the other three players failed to make the start, indicating Lyon took the matter seriously.
Depe has played for Manchester United, while Fergie has attracted the attention of many Premier League clubs, such as Manchester United and Chelsea.
Bayern Munich also had clashes in recent days. Levandovsky and Komang fought each other with fists. Coach Kovac said they had apologized.
Source: App Responsible Editor of Wanke Football: Liu Dang_NS4812