‘Game of Thrones’ Star to Blow the Gjallarhorn at Sunday’s Vikings Game

The Minnesota Vikings will welcome a star from the HBO series 'Game of Thrones' to sound the Gjallarhorn and lead the Skol Chant on Sunday's game against the Packers.

"Thor" Björnsson plays Ser Gregor "The Mountain" Clegane on GOT and is a professional strongman and actor from Iceland.