Hjalmarsson is a strong defenseman with good defensive skills and quite a bit of offensive potetial. He is a strong passer and reads the game well. While Hjalmarsson clearly has the tools to become a rather good offensive defenseman, his defensive game is perhaps even more noticeable as a strength. Plays physically and has good timing in his hits.
- 2013-09-04 • Signed to a five-year contact by the Chicago Blackhawks
- 2010-07-09 • Signed to a four-year offer sheet by the San Jose Sharks
- 2007-05-31 • Signed to a three-year entry-level contract by the Chicago Blackhawks
- 2007-04-03 • Signed to a one-year contract by Luleå