Panathinaikos jumped to second place in the Greek Super League with a narrow win over PAOK.
Greek giants Panathinaikos have fired coach Andrea Stramaccioni following a series of disappointing results.
Former England international Joleon Lescott has left AEK Athens after less than three months.
The source said the Blues had tabled a firm offer for the 17-year-old and are considered favourites to land him.
Paris Saint-Germain are pursuing AIK Fotboll attacker Alexander Isak but Juventus currently lead the chase for the teenage sensation, sources say.
Greece is enlisting anti-terrorism police to investigate a suspected arson attack on a referee's home, which prompted the suspension of league games.