Nigerian pair Kelechi Nwakali and Samuel Chukwuez are set join Arsenal.
Arsenal scouted them during last year's Under-17s World Cup in Chile when Nwakali, 17, was the star of the tournament as he was captain and voted Player of the Tournament. Chukwueze, 16, scored three goals and three assists.
When asked whether he expects it to be done before Monday's deadline, Gunners boss Arsene Wenger said: “Yes. The (talks) are progressing well.
“Yes of course there are work permit issues. There are medical issues, because they have to make medicals. It's progressing well.
“We identified Nwakali as the player of the tournament, basically, and as a top player. We will see if we can manage to get it over the line during this transfer period. [If we can], we will do it. He (Chukwueze) is signing as well."