Aaron Hughes did not feature against Belarus on Tuesday and the veteran defender, 39, has now retired from professional football.
Northern Ireland have achieved their objective of putting daylight between themselves and Netherlands, according to boss Michael O'Neill.
Paddy McNair struck four minutes from time as Northern Ireland maintained their three-point lead over Germany at the summit of Group C.
Josh Magennis made a strong impact off the bench as Northern Ireland won 2-1 at Estonia, to the delight of manager Michael O'Neill.
Northern Ireland were heading for defeat against Estonia until Josh Magennis came off the bench to seal an unlikely win.
Northern Ireland's late win over Belarus was an example of their never-say-die spirit, according to goalscorer Josh Magennis.
Northern Ireland moved top of Group C with a 2-1 victory over Belarus in Euro 2020 qualifying, Josh Magennis' late goal the difference.
Northern Ireland beat Estonia 2-0 in their Euro 2020 qualifier, but Michael O'Neill wants more cutting edge from his side.
Niall McGinn and Steven Davis struck as Northern Ireland beat Estonia 2-0 in their opening Euro 2020 qualifier.
Northern Ireland have called up uncapped Arsenal teenager Daniel Ballard to the squad for the Euro 2020 qualifiers with Estonia and Belarus.