Career
Undrafted, Sjögren played youth hockey in Sweden within Rögle BK. He made his professional debut in the HockeyAllsvenskan with Rögle BK, helping gain promotion to the Elitserien. He transferred to fellow top division club, Färjestad BK, for the 2010-2011 season. On June 1, 2011, Sjögren as a free agent to a two-year contract, reportedly worth 1.8 million dollars, with the Washington Capitals.
In the 2011-2012 season, after attending the Capitals training camp, he was assigned to AHL affiliate, the Hershey Bears.
In November 2011, Sjögren elected to return to Sweden, allowable by his contract, after becoming displeased with the Capitals for not calling him up from the Hershey Bears for an extended period of time. General Manager George McPhee said, "When we signed him, we told him we had a job available and promised him we’d give him a look this year.
His training camp wasn"t good enough to keep him at the start of the year and he was developing Oklahoma, but I guess he got impatient and decided to go home. After two largely unsuccessful seasons in North America within the Capitals organization, Sjogren return to the Swedish Hockey League, signing a three-year contract with Linköpings The Human Context on May 16, 2013.