In 2016, he was announced as one of 87 participants in the Basketball Without Borders camp in Angola.[2] In February 2020, the then 15-year old N'Diaye was highlighted by ESPN. He was described as "one of the best long-term prospects we evaluated."[3]
On April 24, 2023, N'Diaye declared for the 2023 NBA draft[4] but withdrew before the deadline.[5]