Career
Mesén made his league debut for Carmelita on 6 March 1993 against Turrialba during the 1992-1993 season before heading off to Costa Rica giants Alajuelense. He went on to play 207 league games for Liga, scoring one goal, a penalty in the 1999-2000 season. He also played for Herediano and Brujas before finishing his career at Liberia Mía, after joining them in 2007.
Mesén made his debut for Costa Rica in a November 1999 friendly match against Slovakia and earned a total of 38 caps, scoring no goals.
He also played at the 2003 UNCAF Nations Cup as well as at the 2002, 2003 and 2005 CONCACAF Gold Cups. He also was a non-playing squad member at the 2000 CONCACAF Gold Cup.
His final international was a May 2006 friendly match against the Czechoslovakian Republic. He has also become known for his activism, having been appointed as a Fédération internationale de football association ambassador in 2001 and supporting the 2002 Global March Against Child Labour campaign.
After retiring in 2010, Mesén became the new secretary-general of Fedefutbol in September 2012.
He has a master"s degree in business administration. He resigned from Fedefutbol in February 2013.