Scandinavia After the 2006 NCAA season ended, Rosenlund left UC Santa Barbara early. He trialed with
Allmänna Idrottsklubben of the
Swedish Premier Division
Allsvenskan and later moved on to another trial with
IFK Mariehamn in the
Finnish Premier Division,
Veikkausliiga. He failed to secure a contract with either club but made one appearance for
IFK Mariehamn in the
Finnish League Cup. After his short spell in Finland he headed back to Sweden and secured a contract with
Åtvidabergs FF in the Swedish second tier,
Superettan. He made a couple of appearances for ÅFF before he was released by the club.
Canada On March 21, 2008,
Toronto FC announced Tyler Rosenlund was signed to a senior developmental contract. He made his Toronto FC debut on April 5, 2008, appearing as an 83rd-minute substitute during a 4–1 defeat to
D.C. United. He was the first Canadian-born player to score for Toronto FC, which happened at
BMO Field against
Chivas USA on September 6, 2008. He was released by Toronto in February 2009 and signed later with
Surrey United.
Rochester Rhinos Rosenlund signed with
USSF Division 2 Professional League club
Rochester Rhinos in March 2010. He was a mainstay of the club in 2010 and 2011, being named team most valuable player in the latter year. Rochester re-signed Rosenlund for the 2012 season on November 21, 2011.
Whitecaps FC 2 Rosenlund played briefly for
Surrey United Firefighters in the
Vancouver Metro Soccer League following his departure from Rochester. The stay was short-lived as it was announced on February 26, 2015, that Rosenlund had joined
Whitecaps FC 2.
International Rosenlund made his first international appearance with the
Canadian men's national team on January 30, 2008. Rosenlund entered Canada's friendly against
Martinique in the 72nd minute in a 1-0
Friendly win. He has also featured extensively for the U-17 and U-20 Canadian teams and was active for Canada's U-23 team for Olympic Qualifying. ==Awards and honors==