Scotland moved top of Group C after goals from Che Adams and Scott McTominay secured the victory at Hampden Park, but the hosts were far from convincing in the victory.

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Belarus was the dominant side and, having had a first-half equaliser from Evgeni Malashevich chalked off, forced a nervy finish thanks to substitute Gleb Kuchko's goal in the sixth minute of stoppage-time.

The visitors had 22 shots, but only got three of those on target.

Scotland, by contrast, got six of its 12 attempts on target and also had a goal disallowed, with Adams denied a second because of a handball in the build-up.

Steve Clarke's side was booed at the full-time whistle, and while Robertson was happy to get three more points on the board, he acknowledged that the performance was far from Scotland's best.

"It doesn't feel good," he said. "We can be honest with that.

"It doesn't feel like a win at the minute, and I think you can see that by our reaction at the end, which is hugely frustrating. The performance is nowhere near where we need it to be.

"At the start of the week, we would have taken the six points, and we can look back in November at where we are [and be pleased with it], but currently walking off the pitch, it doesn't feel good.

"We gave them far too many chances. I don't know if we were tired from Thursday; we put a lot into that one, but that's no excuse.

"We weren't good on or off the ball. At times, we did well. We could have, with slightly better decision-making, had a couple more chances.

"It's a hugely frustrating night; we felt that in the stands. I didn't quite understand it on Thursday, but I understand it [on Sunday]. We'll take that on board, but come November, we've got the chance to go to a World Cup and that's what we're focused on."

McTominay proved decisive for Clarke's side, with the midfielder scoring his 13th goal under the head coach. Only John McGinn (20) has netted more under the same coach.

It was a milestone match for Clarke, who took charge of Scotland for the 72nd time, the most of any boss in the Tartan Army's history.

He also now has the joint-most wins in the national team's history – 32, level with Craig Brown – but he was less than impressed by the manner in which his side triumphed.

"It's possibly as disappointed as I've been over the whole 72 games [I've been in charge]. We just didn't turn up," Clarke said.

"But before I go down that route, and you start asking me questions about why I'm feeling like that, it's also [good] to point out that performances don't get you qualification. And tonight was certainly not a performance.

"But we got three points, and that's six points from the double header, so we're really pleased about that, as everyone with a Scottish connection will be.

"It's a head scratcher, but I'll go away, I'll have a look, and we'll analyse it. We get the win, but I'm disappointed in the team performance as their head coach."