We won't know for sure until he arrives in Greece and is checked out by the NT medical staff. This article is suggesting he's okay and should be fit to play the qualifiers which are 11 days away.
https://www.sport24.gr/football/ethniki-elladas-ligei-o-synagermos-gia-mpakaseta-ola-deichnoyn-oti-tha-prolavei-irlandia-kai-gallia.10067469.html