The youngster has enjoyed a breakout season, attracting growing interest from Europe’s elite after an impressive campaign for the German club.
Speaking on the L’Immo podcast, Stobbe stressed Koln’s stance, saying it would be “madness” to let such a key talent leave prematurely.
While interest continues to build, the club remain determined to keep their prized attacker beyond the summer window.
Reports suggest any potential suitor would need to offer at least €50 million to begin negotiations.
El Mala has recorded 11 goals and four assists this season but remains non-committal about his future, recently stating he “can’t say” if a move is possible.
