Cyriel Dessers has raised doubts about playing for the Super Eagles after he said he was still open to play for Belgium.
The striker is eligible to play for Nigeria through his mother, who is from Lagos, and also for Belgium, where he was born and the native country of his father.
He met with top Nigeria Football Federation (NFF) officials in London and also secured a Nigerian passport.
Dessers, 25, was set to make his official debut for Nigeria in March, but the AFCON double header against Sierra Leone was called off as a result of the outbreak of the Coronavirus.
But he has now told Het Belang van Limburg that he is still open about his international allegiance.
He said he has not spoken with the Belgium coach Roberto Martinez, but at the moment his focus is on producing the goods for new club KRC Genk.
He therefore said he would rather wait till September, when Belgium will be on international duty, to make a final decision on his international future.