Birmingham City boss Alex McLeish believes Nikola Zigic is now settling in at St Andrew's.
McLeish reckons Zigic has cracked what it takes to succeed in England.
He said: "We've been working with the big fella on the aggression and he's certainly shown a lot more of that.
"Ziggy just had to find his feet. He had to change his game to get the best what we would like from him.
"Intelligent footballers have to realise 'I'm going to have to do this if I'm going to improve in this country.' He's getting to be the dangerous asset we believe he can be."
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