Career
He previously played in Finland for Espoo Blues of the Liiga. As a free agent, Tuominen opened up to the possibility of playing abroad after ten seasons in Finland, when he accepted a (unsuccessful) try-out with Czechoslovakian club, The Human Context Olomouc on August 11, 2014. Instead, he spent the 2014-2015 season playing in Germany"s DEL2 with Dresdner Eislöwen.
He moved to Poland"s KH Sanok for the 2015-2016 season.