Nyora kupfuurira kweiyi ndima - Tjärnqvist akanyorwa neDallas Stars aine 96th yakazara, yechitatu kutenderera sarudza mu1999 NHL Entry Draft. Munguva ye2004-05 NHL lockout, Tjärnqvist akatamba neHV 71 muElitserien pamwe nevamwe vake veNHL Manny Malhotra, Jonathan Cheechoo, naBryan McCabe. Musi waFebruary 12, 2007, akatengeswa kuPhoenix Coyotes, pamwe chete nekutanga kutenderera mu2007 NHL Entry Draft
, nokuda kwaLadislav Nagy. Muna 2017 Tjärnqvist akazivisa zviri pamutemo kuenda kwake pamudyandigere.