Ahmed Musa, Alex Iwobi and Shehu Abdullahi have joined Nigeria’s Golden Tulip Hotel camp in Asaba.
The trio arrived on Wednesday afternoon to bring the number of players in camp to 23. Only Shanghai Shenhua striker Odion Ighalo and Udinese defender William Troost-Ekong are still expected.
After the game, Gernot Rohr is expected to name his final 23-man squad for the African showpiece.
The three-time African champions will depart for Ismaila, Egypt on Sunday to continue their preparation for the tournament.
Nigeria will hope to manoeuvre their way past Group B rivals Burundi, Guinea and Madagascar for a chance to reach the knockout stage of the competition.