Scotland boss Craig Levein took heart from the fact that his squad managed to overcome the absence of some key senior players and some injuries during the match to record a 3-1 friendly victory over Australia last night.
It was the efforts of the likes of Rhodes and McCormack which were crucial whilst goalkeeper Matt Gilks stepped in to replace the injured Allan McGregor early in the match and did a great job with the gloves.
Levein, who had three other players forced off with injuries, admits it was nice to come through with a win against the Aussies and was hoping his squad could repeat that performance against Serbia in their September 8 World Cup qualifier in Glasgow.
"It's a big boost. If we had lost I would have been sitting here saying tonight's game isn't the most important thing, the game against Serbia matters more," he said.
"But even though we have won I'll still say the Serbia game is the crucial one.
"The two full-backs (Alan Hutton and Danny Fox) went off injured and (James) Morrison went off after rolling his ankle.
"Tonight I learned we have maybe found one or two other players capable of stepping in if we have any problems."