David Marshall says luck deserted Scotland as they went down 2-0 in Serbia.
The goalkeeper was preferred to Allan McGregor but couldn’t keep out a double from Filip Duricic in the second half.
Defensive lapses contributed to both goals but Marshall believes the team’s performance overall didn’t reflect the scoreline.
"It was a disappointing night eventually," he said. "I thought first half we did okay, we defended pretty well the first half hour and limited them.
"Even at the start of the second half we had a few chances. Jordan has had a chance just before they scored. It's a difficult pitch, and it was a difficult chance.
"They have had a bit of luck with the deflections that led to their goals.
"It's just disappointing that after a good first-half performance we have let in two goals in quick succession.
"We have not won a game in the group, we have disappointed ourselves and let down the fans as well. It is a low dressing room.
"We still believe we can get victories but we just need to work hard to turn it around. There is nothing else we can do apart from get on with it."