“We didn’t reach the heights of the performances we’ve put in in some of the losses, but we got a win and that was the most important thing.
“We had a little bit of luck tonight that we maybe haven’t had in the last few games and we were able to pull through and finally get the win.”
To finish second in their group, Scotland must beat Poland, hope Croatia loses to Portugal and there is a three-goal swing.
However, Gordon says Scotland will not worry about permutations ahead of Monday’s game in Warsaw and the main aim is simply to pick up another three points.
“We just have to keep winning games,” he said. “Now that we have the first one, we have to try to support it from time to time and then we will see where it takes us.
“Everyone will talk about all kinds of permutations that are possible heading into this last game. But for us it’s about going there and then trying to win.”
Gordon kept Scotland’s clean sheet intact before Sucic’s red card with several saves, including one with the legs of Andrej Kramaric.
“[I was] “A little late to see it,” he added. “My body weight was on the other leg and I managed to stretch one leg long enough for my big toe to reach it.”
“It was important. I think the first goal was always going to be vitally important. If we didn’t get it, it was going to be a difficult night to get back into something as important as keeping a clean sheet.”