Rondbjerg was selected in the third round (65th overall) of the 2017 NHL Entry Draft by the Vegas Golden Knights.
Vegas General Manager George McPhee, who will soon officially take up the mantle of President of Hockey Operations with Kelly McCrimmon being promoted to the role of GM, announced the move.
Rondbjerg, who was born in Denmark, is currently cutting his teeth in the professional game with the Vaxjo Lakers HC of the Swedish Hockey League.
Heading to the Vaxjo Lakers after being drafted, Rondbjerg posted six goals and five assists for 11 points in 35 games, before lightning it up for Denmark at the 2018 World Junior Championships with 11 points (six goals, five assists).