Northern Ireland play San Marino on Saturday, before a trip to face the World Champions Germany
Aberdeen defender Callum Morris and St Johnstone's Paul Paton have been called into the Northern Ireland squad to face San Marino and Germany.
Morris was part of the international squad that travelled to the Czech Republic, but didn't feature in the game in Prague.
Paul Paton has two international caps and last represented the country in the friendly match against Wales at Cardiff City Stadium in March.
Northern Ireland striker Josh Magennis says their next two World Cup qualifiers will require two completely different mindsets.
Speaking to Sky Sports News, Magennis says their preparation for both games won't be the same.
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