Koopmeiners was left out of the Netherlands' squad after not featuring in any of their World Cup qualifiers in the current campaign.
The Juventus midfielder received a late call-up after all when Feyenoord midfielder Quinten Timber dropped out due to fitness issues. The former Feyenoord captain has not yet fully recovered from an ankle injury.
The Netherlands play Malta on Thursday, October 9th, before hosting Finland at the Johan Cruyff ArenA on Sunday, October 12th. Oranje lead group G with 10 points from four games, which has them equal on points with Poland, who have played one more game and have a worse goal difference.