Nottingham Forest chief Evangelos Marinakis is said to be targeting a big-name boss to replace Carlos Corberan at Olympiacos.
Marinakis, who also owns the Greek Super League champions, dismissed the former Huddersfield Town manager after just six weeks and 11 games in charge.
The Thrylos sit fifth in the league after winning just two of their opening five games and are already seven points behind rivals Panathinaikos.
