Hellström has great size, reach and is strong along the boards and in the corners. He reads the game well and makes simple, but smart, decisions on the ice. He is a defenseman of stay-at-home type and always does his job well. Plays physical and has good timing in his hits.
- 2010-05-11 • Signed to a one-year contract by Sibir Novosibirsk
- 2009-10-18 • Loaned to Luleå by the St. Louis Blues
- 2007-05-03 • Signed to a three-year, entry-level contract by the St. Louis Blues