Croatia held Greece to a goalless draw in Piraeus to seal their place at the World Cup in Russia next summer.
Recap as Croatia qualified for the World Cup with a 4-1 aggregate play-off win over Greece.
Croatia will be looking to guard against complacency when they travel to Greece for the second leg of their World Cup play-off.
Croatia set one foot in the World Cup finals after cruising to an emphatic 4-1 win over Greece in their play-off first leg.
The final nine places at next summer's World Cup finals in Russia will be decided by the end of this month's international break.
The Republic of Ireland will meet Denmark for a place at the 2018 World Cup while Northern Ireland are up against Switzerland.
©2018 Sky UK