Scotland midfielder James McArthur feels that his side's World Cup qualifying clash with Serbia is a must win game.

Gordon Strachan's team suffered their third defeat in five games in their campaign with a 2-1 loss to Wales on Friday.

"We need to start winning games," he told the Daily Star. "You can look at tables but the bottom line is that we need to take it one game at a time and we need to go and beat the Serbs.

"I believe we have the quality to do that. When you look at our squad there are plenty of players who are playing in the Premier League or in the Champions League with Celtic."

Scotland are bottom of Group A and are 11 points behind leaders Belgium after five games.