Super Eagles coach Gernot Rohr has included four home-based players in the squad that will face the Lone Star of Liberia.
Mfon Udoh, captain of Enyimba FC, defenders Adeleye Olamilekan (FC IfeanyiUbah) and Ebube Duru (Lobi Stars), as well as Enyimba FC forward Sunday Adetunji are the new invitees.
All the newly invited players will report at Sheraton Hotel, Lagos on Monday.
The 14 players who were among the Seychelles contingent will fly into Lagos from Addis Ababa before the squad is flown to Monrovia.
The international friendly is scheduled for Tuesday at the 35,000-capacity Samuel Kanyon Doe Sports Complex.
The 18-man Super Eagles list
Goalkeepers: Ikechukwu Ezenwa (Enyimba FC); Daniel Akpeyi (Chippa United, South Africa)
Defenders: Semi Ajayi (Rotherham United, England); Chidozie Awaziem (FC Porto, Portugal); Adeleye Olamilekan (FC IfeanyiUbah); Jamilu Collins (SC Padeborn 07, Germany); Ebube Duru (Lobi Stars)
Midfielders: Wilfred Ndidi (Leicester City, England); Oghenekaro Etebo (Stoke City FC, England); John Ogu (Hapoel Be’er Sheva, Israel); Kelechi Nwakali (FC Porto, Portugal); Joel Obi (AC Chievo Verona, Italy)
Forwards: Kelechi Iheanacho (Leicester City, England); Simeon Nwankwo (Crotone FC, Italy); Henry Onyekuru (Galatasaray SK, Turkey); Sunday Adetunji (Enyimba FC); Samuel Kalu (Bordeaux FC, France); Mfon Udoh (Enyimba FC)