Alexander Steen was born March 1, 1984 in Winnipeg, Manitoba. The first round, 24th overall selection of the Toronto Maple Leafs in the 2002 NHL Entry Draft, Steen, who honed his skills in the Swedish Jr. and Elite Leagues is the son of former Winnipeg Jet Thomas Steen.
An offensively gifted forward, Steen suited up for Goteburg, Frolunda and Modo before making his North American and NHL debut with Toronto during the 2005-06 season. Over the next three-plus seasons in Toronto, Steen never produced more than the 18 goals he had in his rookie season. The former first overall draft pick had just four points early into the 2008-09 season and Toronto Maple Leafs General Manager Cliff Fletcher decided to send him to St. Louis in a multi-player trade.
During the 2013-14 season, Steen broke out where he scored 33 goals and 62 points in 68 games for the St. Louis Blues.
On the international stage, Steen is a two-time member of Sweden's World Junior Team in 2003 and 2004. Steen also represented Sweden during the 2014 Winter Olympics where he helped the team to a Silver Medal.