Fall attended the Seeds Academy in
Thiès, Senegal, before joining the youth ranks of French team
Le Mans Sarthe Basket in 2012.
Le Mans Sarthe (2014–18) He made his debut on Le Mans’ men's team during the
2014-15 season. In 2015, he was named to the "Cinq All Star Espoirs", the all-first team of the French development league, after averaging 12.6 points, 12.0 rebounds and 2.1 blocks per contest during the 2014-15 campaign. An early entry candidate for the
2016 NBA draft, he later withdrew his name from the list. He was sent on loan to
LNB Pro B side
Poitiers Baskets 86 for the 2016–17 season. In his last year with Le Mans, the
2017-18 season, Fall won his first
French championship. On August 9, 2018, Baskonia loaned him to
SIG Strasbourg for the
2018–19 season. Fall was part of Baskonia's championship winning team in the
2019-20 ACB season, but he would miss the
Final Four due to injury. On August 15, 2021, Fall officially parted ways with the Basque club.
ASVEL Basket (2021–24) Fall signed with
ASVEL Basket on August 16, 2021. Fall's contract with ASVEL was extended with two more years on July 19, 2022, after having helped the
Lyon-based team win the
2021-22 LNB Pro A.
FC Barcelona (2024–present) On July 31, 2024, Fall was announced as a new
FC Barcelona player, signing a one year deal with the Catalans. During the 2024-25 season, his role in the team grew as the Barcelona roster was plagued with injuries.{{Cite web|date=2025-06-30|title=Fall, el 'anti Tavares' con carácter que no funcionó en el Barça == National team ==