It was under the guidance of coach Érol Malkoc that Ndiaye made significant strides at Senegalese club Amitie FC after arriving from Bou Academy. Reflecting on his development, Malkoc described it as “a very beautiful human story,” recalling how the young defender arrived with enthusiasm and a strong willingness to learn. Receptive and open to coaching from the outset, Ndiaye adapted quickly, showing marked physical improvement while also demonstrating a clear understanding of his role and what was required of him.

Ndiaye joined Liverpool in January 2026, with the deal understood to be worth around £1 million. The left-footed centre-back initially saw his progress checked by injury, which delayed his integration into the academy setup at Kirkby. After returning to fitness, Ndiaye has developed steadily, culminating in a place on the bench for the Premier League fixture against Manchester United on 3 May 2026.