Career
Yourassowsky began his career in the youth ranks of top Belgian club Anderlecht. In 2001 he went on trial for four months with top Spanish side Football Club Barcelona. He returned to Anderlecht and in 2003 joined Genk.
After impressing in Belgium, Yourassowsky joined top Argentinian side Boca Juniors.
He was promoted to the first team by Carlos Bianchi and made his first division debut in June 2004 in a starting role in a 0–0 draw versus Colón de Santa Fe. As a result of injuries and a managerial change his opportunities with Boca diminished.
In August 2005 he would return to Europe and join Pontevedra in Spain. The following season Yourassowsky moved to Greece joining Association for the Study of Internal Fixation Kerkyra and the left back was assigned the number 3 shirt.
With Kerkyra he scored his first professional goal.
The following season he joined Greek side Ethnikos Asteras and appeared in 6 league matches scoring 1 goal. He joined Skoda Xanthi in mid-season and remained there through the 2009 season. In his one year in Mexico Yourassowsky made 11 league appearances with his club
The following season Yourassowsky returned to Europe by signing with Croatian side NK Rijeka.
While with NK Rijeka he appeared in 14 league matches. He signed with Toronto Football Club on 18 March 2011 following a successful trial.
Yourassowsky made his debut for the team as a second half sub on 19 March 2011 against Vancouver Whitecaps. One week later Yourassowsky made his first start for the team against Portland Timbers in which he received two yellow cards resulting in a red card in the 84th minute, the game ended as a 2–0 home victory for Toronto with both goals coming from Javier Martina.
Yourassowsky was waived by Toronto Football Club on 19 January 2012.
In January 2015, he signed a contract till the end of the season with Dender EH. Toronto Football Club.