As a result of his skills, Vlasic was bumped up to the novice A level at the age of seven and eventually advanced to the midget-AAA Lac St. Louis Lions.

[5] Although Vlasic was not originally selected to compete in the 2004 CHL Canada/Russia Series, he was chosen to replace an injured Sidney Crosby on the roster.

[7] After making the Sharks' opening night roster at the age of 19, he made his NHL debut on October 5, 2006, against the St. Louis Blues.

[8] On August 27, 2008, the San Jose Sharks signed Vlasic to a four-year, $12.4 million contract extension that would keep him with the team through the 2012–13 season.

[16] Following the Sharks defeat by the Vegas Golden Knights in the second round of the 2018 Stanley Cup playoffs, Vlasic was invited to play for Team Canada at the 2018 IIHF World Championship.