Career
After youth years with Varteks and Podravina Ludbreg, Vručina started his professional career at Slaven Belupo in the second half of the 2003–2004 season. In the 2006–2007 season, he appeared in 32 of the club"s 33 games in the Croatian league, scoring 11 goals. In the summer of 2007, he also appeared in all of the club"s 4 Union of European Football Associations Cup qualifiers, scoring 3 goals.
In the second half of the 2007–2008 season, Vručina was signed by German Bundesliga side MSV Duisburg on loan until the end of the season.
He made his Bundesliga debut on 2 February 2008 as a late substitute in their 3–3 draw against Borussia Dortmund. However, he failed to find his place as a regular at the club and only appeared in 8 league games, 7 of them as a substitute.
Following Duisburg"s relegation to the 2nd Bundesliga, he returned to Slaven Belupo. However, they failed to reach the group stage after losing to CSKA Moscow in the first round.
Vručina nevertheless continued to perform well for the club in the Croatian league and he was their top goalscorer with 14 goals.
On August 2010, he signed a one-year contract with Superleague Greece club Panserraikos F.C. After playing 3 official matches with Panserraikos F.C., he suffered a knee injury and on 28 September it was announced that he will need a knee surgery that will keep him out of action for about 5 months. Vručina and Panserraikos F.C. agreed termination of his contract in December 2011 and in March 2012 he joined his former club Slaven Belupo as a free agent.
In late March 2009, he received his first call-up for Croatia"s senior national team after being named to their squad for the 2010 Fédération internationale de football association World Cup qualifier against Andorra on 1 April 2009.