The young Scorpions finished second-place in Group B with 7 points before locking horns with Mali, who finished top-spot in Group A with 7 points.
The Gambia U-20 team will contend to beat the Malians in their last four encounter to progress to the final of the 2022 WAFU Zone A U-20 football tournament.
The young Eagles will fray to overcome The Gambia to navigate to the final of the sub-regional championship.
Meanwhile, host nation Mauritania will clash with Senegal in the other semi-finals match at the Stade Olympique on the same day.
Mauritania finished runners-up in Group A with 7 points after three group matches, while Senegal finished top-spot in Group B with 10 points in four group matches.
The final for the 2022 WAFU Zone A U-20 football tournament is slated for Sunday 11th September 2022.
The winner and runners-up for the 2022 WAFU Zone A U-20 football tournament will represent West Africa in the 2023 Africa U-20 Youth Championship to be hosted in Egypt.
