Keshi and his squad returned to training on Monday, but the coach was forced to move his first training session to the artificial turf of the Fifa Goal Project after assessing the condition of the national stadium pitch.
The squad are preparing for a friendly match against Niger on August 15.
The game, which will serve as a tune-up for the final round African Nations Cup qualifier against Liberia in September, will be played on natural grass turf.
On Sunday, Keshi called up Crown FC's Femi Ajani as replacement for injured Heartland winger Obinna Nwahukwu.
The forward joined the rest of the squad in training on Monday.
The 22 Players that trained on Monday evening:
GOALKEEPERS: Chigozie Agbim (Warri Wolves), Daniel Akpeyi (Heartland FC)
DEFENDERS: Azubuike Egwuekwe (Warri Wolves), Papa Idris (Kano Pillars), Juwon Oshaniwa (Sharks FC), Ezekiel Henry (Rising Stars), Francis Benjamin (Heartland FC), Umar Zango (Kano Pillars), Osuchukwu Ogonna (Enugu Rangers)
MIDFIELDERS/FORWARDS: Ejike Uzoenyi (Enugu Rangers), Sunday Mba (Warri Wolves), Reuben Gabriel (Kano Pillars), Uche Kalu (Enyimba FC), Henry Uche (Enyimba FC), Femi Ajani (Crown Fc), Christian Ofili (ABS FC), Solomon Jabason (Akwa United), Kabiru Umar (Heartland FC), Chibuzor Onyekwelu (FAME FC), Sanusi Sani (Gombe United), Sibi Gwar (Niger Tornadoes), Philip Asuquo (3SC).
Awaited: Moses Ocheje, Gowfrey Oboabona, Izu Azuka, Kwambe Solomon (All Sunshine Stars)