Education
Radja was raised in Yorkville, Illinois and graduated from Yorkville High School in 2003. He attended the University of New Hampshire from 2004 to 2008.
Radja was raised in Yorkville, Illinois and graduated from Yorkville High School in 2003. He attended the University of New Hampshire from 2004 to 2008.
Previously, he played for the Augsburger Panther of the Deutsche Eishockey Liga. Radja played two seasons of junior hockey for the Waterloo Black Hawks of the USHL. While at Waterloo Radja played with his future University of New Hampshire teammate Kevin Regan. Radja scored a key goal in the game which clinched the Black Hawks" victory in the 2004 Clark Cup.
In December 2006 he suffered a knee injury which caused him to miss a month of play.
He made a quick recovery, however. In 2008 he was suspended for two games after an incident in which he was briefly detained by police while visiting T. J. Oshie after a game against North Dakota.
That season proved to be a successful one for Radja, he was selected for the Hockey East All Star team and was the National College Hockey Player of the month in February 2008. After leaving UNH, he briefly played for the Syracuse Crunch of the AHL at the end of 2007-2008 season.
The next year he played in eight games with the Fresno Falcons of the ECHL before spending most of the season with the Rockford IceHogs of the AHL. In the 2009-2010 season Radja played in twenty five games in Finland with TPS of the Master of Science-liiga before returning to North America to play for the Syracuse Crunch and Bridgeport Sound Tigers in the AHL. The next year Radja returned to Europe to play for the Augsburger Panther of the Deutsche Eishockey Liga.
On January 13, 2012 Radja signed with the Houston Aeros of the American Hockey League.