Sontje Hansen was close to transferring to French club RC Lens, as he mentioned in an interview with VoetbalPrimeur. His agent had discussions with the club's director. The initial conversation went well, but the second did not, mainly due to financial disagreements, causing the transfer to fall through.

French Foot Mercato reported that Sontje Hansen, a versatile and young forward, is a major target for RC Lens. However, it was noted that Lens has not yet taken any action towards NEC. It was reported that NEC wants five million euros for Hansen's transfer. Hansen, who moved to NEC from Ajax on a free transfer in the summer of 2023, has been attracting attention due to his regular playing time and performance, having scored five goals in eighteen matches this season. While Lens is interested, the player's future remains uncertain as clubs from Germany and England are also reportedly monitoring him.