Career
Originally from Helsinki, Arajuuri moved to the Åland Islands and IFK Mariehamn in 2008. He had already made his debut in the Veikkausliiga with Football Club Honka against rivals HJK Helsinki. During his first season with IFK Mariehamn, he participated in all except two games, making it a total of 24 appearances.
During the summer of 2009, Arajuuri was frequently linked with a move to Sweden, especially to Djurgårdens IF. Arajuuri"s player agent, Jonas Wirmola, admitted to one of the major newspapers of Åland that Djurgården and several other clubs had shown interest in the young Finnish defender.
Eventually, Arajuuri signed a four-year deal (on a Bosman-transfer) with the Swedish champions of 2008, Kalmar FF on 24 September 2009. Arajuuri netted his first league goals for Kalmar FF home against GAIS on 23 June 2011.
He scored twice to help the Småland club earn a 2 - 1 victory. From January 1, 2014 he will play for Polish side KKS Lech Poznań.
Arajuuri made his debut in the Finland national under-21 football team in a friendly against Poland in Jyväskylä on 3 June 2008.
Arajuuri has also represented Finland"s U-23 national team in the International Challenge Trophy. Arajuuri was called up to represent Finland in the U-21 national team qualifiers for the 2011 U-21 Euros. He was a part of the squad that faced Holland and Poland in September 2009, and has since that become a regular.
Arajuuri earned his first cap for Finland in a friendly against South of Korea on 18 January 2010 in Malaga, Spain.
Arajuuri came on as a substitute in the 84th minute.