Nottingham Forest are monitoring Olympiacos player Charalampos Kostoulas. In addition to Nottingham Forest, Tottenham Hotspur, Chelsea, and Aston Villa are also keeping tabs on Kostoulas, as well as his Olympiacos teammate Christos Mouzakitis. This indicates a growing interest from multiple Premier League clubs in the Olympiacos duo, suggesting potential competition for their signatures in the upcoming transfer window.