The 19-year-old has joined Cardiff on an initial one-month loan deal.
The Slovenian Under-21 international joined the Magpies from NK Domzale in January 2009.
Vuckic has made five appearances for Newcastle this season.
The 19-year-old has joined Cardiff on an initial one-month loan deal.
The Slovenian Under-21 international joined the Magpies from NK Domzale in January 2009.
Vuckic has made five appearances for Newcastle this season.
