Gerhard Sigfrid Henning Olsén was born on November 12, 1908 in Göteborg and made his IFK Göteborg debut in the 1931/32 season, which was also the debut season of team mate Fritz Berg. At 22 years, 9 months and 2 days, on August 16, 1931, he took part his first competetive game against IK Sleipner in an Allsvenskan game that ended 5–2. He spent one season with the IFK Göteborgs first team, and during his career he played in 4 first team games. Out of these 4 first team games, 4 were Allsvenskan games.
Sigfrid Olsén is with his 4 Allsvenskan games number
400 on the list of those who have competed in most Allsvenskan games for IFK Göteborg. Olsén passed away in 1973, 65 years old.