Stack was the busier of the two keepers as the visitors peppered his goal with long-range shots, but none presented serious dangerous for theformerArsenalplayer.
Birmingham manager Alex McLeish handed Hleb his first start since 27 November following a hamstring injury and theformerArsenal and Barcelona player served notice of his talent for unlocking defences within the first two minutes.
Anelka's Chelsea team-mate John Terry, who is playing for England in South Africa, said he disagreed with the decision to send theformerArsenal and Real Madrid player home.
And it was not long before the curse of Southgate struck the Gunners again when formerplayer Aliadiere guided Tuncay's half-volleyed cross from the left high into theArsenal net.
The French defender delivered a pass into no-man's land inside theArsenal area and allowed Parnaby to seize on the ball before bringing theformer Middlesbrough player down.