Frederic Paquet has revealed that the French outfit will not block the 26-year-old's departure to greener pastures, should another player arrive in his stead
The 26-year-old, who maintains that Newcastle are his preferred choice, is also of interest to Inter as well as Valencia.
"Mathieu [Debuchy] has told us of his intention to leave the club," Lille director general Frederic Paquet said to Voix du Nord.
"We do not intend to put up a fight with the player over his decision. We like him, but as long as we can find a replacement of the same level, we will let him leave."
Debuchy broke into the first team as a youth player in 2003, on the way to amassing over 200 Ligue 1 appearances for Lille.