Despite being held to a 0-0 draw by 10 men in Reykjavik, the 42-year-old coach is in no doubt that his men will prove their superiority in Zagreb next week
The Vatreni were held to a 0-0 draw in Reykjavik on Friday - even though the hosts were reduced to 10 men following the second-half dismissal of Olafur Skulason.
However, Kovac is confident that Croatia will seal qualification in Zagreb next week.
“This is not a bad result,” the 42-year-old trainer told reporters. “We have the second leg at home in front of our people and we hope for good results in to get to the World Cup.
“Iceland has shown their real character, and endured our pressure in the second half. We had a lot of chances, but we did not manage to achieve a goal.
“After this game, I think our team has more quality and strength.
“We know how Iceland play and I am sure that we will control the game in Zagreb.”
Despite not being able to score with the extra man, the former Bayern Munich midfielder feels the red card may still play its part in the return leg on Tuesday.
He added: “We expect that Iceland has spent more energy today than they would have liked, so it could benefit us in the second leg.”