Aye, if there's a model pro, Duric is one. He's coming to 41 soon and is still one of the top strikers in the league and NT. Takes care of his body like a footballer should, nee bad habits or controversy. Previous naturalised strikers - Egmar Goncalves (Brazil), Mirko Grabovac (Croatia) - didn't manage to take their league scoring exploits to the NT. He did and proved to be one of the big success of the Foreign Talent Scheme. Will love him to stay in Singapore in a coaching/ managing capacity after he eventually retires.
In fact, Duric has a pretty amazing story (hitchhike his way to the Olympics when he was younger I believe).
http://en.wikipedia.org/wiki/Aleksandar_Duric
http://www.fifa.com/worldfootball/clubfootball/news/newsid=1286130.html
Not to mention him being the oldest debutant for Singapore at age 37.