Kammala jumla mai zuwa: An rubuta shi ta Anaheim Ducks a cikin 2007 NHL Entry Draft, 121st gaba ɗaya a zagaye na huɗu. A shekara ta 2010, Ducks sun yi musayar 'yancin Modig ga Pittsburgh Penguins a musayar zagaye na shida na zagaye a cikin
Rubutun shekara ta 2010. Daga nan sai Penguins suka amince da sharuddan tare da Mattias Modig zuwa kwangilar matakin shiga na shekaru biyu.