An attacking midfield player, Erik was signed in 2011 after Blades scouts spotted him playing for Strindheim in his Norwegian homeland. Since coming over to these shores, he has featured heavily for United's development squad and has made a number of first team appearances, as well as scoring a couple of goals.
He also had a loan spell at York City, who went on to win promotion and win the FA Trophy.
Having time to mature at the Shirecliffe training base, he will be hoping to make a more of an impact at first team level in the 2012/13 campaign.