Last summer, AC Milan paid €35.5m to Club Brugge to secure the signature of the 22-year-old midfielder, beating off competition from Leeds United.
However, De Ketelaere failed to impress in Rossoneri colours and AC Milan are open to letting him go this summer.
The Belgian is drawing interest from several clubs, Premier League outfit Aston Villa being one of them.
Unai Emery is an admirer of De Ketelaere’s talents and wants to bring the player to Villa Park in the ongoing window.
However, De Ketelaere has no shortage of suitors in the market and according to Italian outlet Calciomercato.com, Marseille have enquired with the Serie A outfit regarding the midfielder.
AC Milan are suggested to be prepared to entertain loan offers for the Belgian, but only if they contain the prospect of a permanent sale down the line.
While clubs chase De Ketelaere, he has been keen to fight for his spot at the Italian giants.
