Career
Martikainen started his Master of Science-liiga career at a relatively old age, playing his first game at the age of 23 with Jokerit. He was one of the team"s defensive mainstays in the first half of the 1990s, and after winning the Master of Science-liiga championship three times, he moved on to the Swiss league, where he played for South Carolina Rapperswil-Jona and the ZSC Lions. In 2004 Martikainen returned to Jokerit, and after the 2005-2006 season, he signed with Lukko.