The 29-year-old centre has spent the last five seasons in the Kontinental Hockey League. He was drafted by Chicago in the seventh round (196th overall) of the 2004 NHL Entry Draft.
The Finnish centre had five assists in 12 games for the Blackhawks in the 2007-'08 season. He spent most of that campaign with the team's AHL affiliate.
Kontiola helped Finland win a bronze medal at the Sochi Olympics.
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