Lens have endured a disappointing campaign following their achievements last season, when they finished as Ligue 1 runners-up and won the French Cup. However, several young players have continued to make an impression, with Ganiou emerging as one of the club's most interesting prospects.
Borussia Dortmund and Leipzig are both admirers of the centre-back, who has been compared in France to former Real Madrid and Manchester United defender Raphaël Varane.
Premier League clubs are also keeping a close eye on his development. Manchester City, Tottenham Hotspur, Newcastle United, Fulham and Brentford have reportedly sent scouts to watch him, while Paris Saint-Germain are also monitoring his situation.
Ganiou's absence has temporarily interrupted that attention. The defender, who had established himself as a regular starter for Lens, has been sidelined for approximately two weeks following knee surgery.
Nevertheless, his qualities have made him an attractive potential investment. He is regarded as an elegant defender with considerable pace and physical strength, attributes that have helped him establish himself in the senior side.
His development has also been recognised internationally. Ganiou has represented France at under-21 level since March and is regarded as a player with significant potential for the future.
Lens have secured his services until the end of the 2029-30 season, placing the club in a strong contractual position should interest develop into formal offers.
However, there is reportedly little expectation that Ganiou will remain at the club for the long term, particularly given the level of attention he is attracting from wealthier European sides.
Dortmund's interest could be especially significant because of the uncertainty surrounding Nico Schlotterbeck's future. The Germany international has attracted considerable attention himself, and Ganiou could potentially be viewed as a long-term replacement should the defender eventually depart.
For now, Ganiou's immediate priority is recovering from surgery and returning to regular football. His performances before the injury have nevertheless ensured that several major clubs will continue following his progress.