Gordon Strachan insists Scotland will not put on another "freak" show tomorrow night when they take on Serbia in their 2014 World Cup qualifier in Novi Sad.

The Tartan Army boss and his squad arrived in Belgrade yesterday still unable to fathom out their woeful start to Friday night's 2-1 defeat to Wales at Hampden Park - a result which kept them rooted to the bottom of Group A with two points from five games.

Although Scotland recovered in part from their early hesitancy to lead through a Grant Hanley goal scored just before the break, Chris Coleman's side bounced back after the break to end any hopes the Tartan Army might have had of making Brazil next summer.

"It was a freak 25 minutes," said former Saints boss Strachan.

"I can't call it a bad 25 minutes. I thought it was freaky, what I (saw) was totally unusual.

"I spoke to the players and they had never seen anything like that 25 minutes anywhere in their footballing career.

"I don't think that will ever happen again - I know it won't happen again.

"So I put that aside and look at the next 20 minutes which was fine, we got into a rhythm.

"The second half was fine, we looked like we were going to score and then we lose a goal and then the last 15 minutes, we didn't really count that "It was a disappointment for everybody who went there on Friday night, people were scratching their heads as to what happened for the first 25 minutes, but as I say, it was a freak 25 minutes."

Already without Darren Fletcher, Scott Brown, Ross McCormack, Saints defender Danny Fox, James Forrest and James Morrison, Strachan's squad was weakened further when defender Russell Martin withdrew with what is believed to be hamstring injury and midfielder Kris Commons stayed behind for personal reasons.

Moreover, Robert Snodgrass is suspended for picking up two yellow cards against Wales.

Birmingham City defender Paul Caddis joined up with the squad yesterday.

"We are still in the process of making ourselves feel better and we will do that by training and putting together a plan,” Strachan added.

"We are all hurting that's for sure.

"The players realised that it was an opportunity wasted and I realised that as well.

"It is hard and the only way you can get rid of your frustrations is by playing and winning games of football.

"But we had a midfield group who had never played together at all.

"Some of them were playing out of position because of lack of numbers.