In Monday’s friendly match between Nigeria and Guinea in Abu Dhabi, Umar is said to have sustained a knee injury.
Onuachu was not included in Nigeria’s final 40-man AFCON squad, despite being included in their initial 40-man roster.
The replacement was announced by the Super Eagles on Friday in a post on X.
In a post on X on Friday, the Super Eagles announced the replacement.
It reads: Sadiq Umar is out of the AFCON 2023 squad due to injury; Paul Onuachu replaces him.”
Umar is set to return to his Spanish base for further assessment.
The Super Eagles will kick off their quest for a fourth AFCON title and will take on Equatorial Guinea in their Group A opening game on Sunday, January 14th, before further clashes with host nation Cote d’Ivoire on January 18 and Guinea-Bissau on January 22.