Born in Cameroon, N'Gandebe arrived in France aged 19. He started rugby in Bobigny, then joined Massy, where he played Federale 1.
He won Federal1 with Massy in 2016-17 season which earned promotion to the Pro D2, Gabriel is well regarded for his outstanding athletic qualities.
Gabriel was a member of the France U20 side that played at the 2017 U20 World Cup in Georgia and signed for Montpellier on a three-year deal.
After starring for Montpellier for the first two seasons at the club he was called into France's squad ahead of the 2020 Six Nations.
|2017 - present|
|2019 - present|
|2020 - present|
|2016 - 2018|