Ole Gunnar Solskjaer made his first signing as Cardiff manager when the English Premier League side announced his fellow Norwegian Magnus Wolff Eikrem had joined for an undisclosed fee from Dutch Eredivisie side Heerenveen.
The 23-year-old Eirem is also a former Manchester United youth team player, where Old Trafford favourite Solskjaer got to know him as a coach. "I've known Magnus for many years, having worked with him at Manchester United and then signing him for Molde," Solskjaer told Cardiff's official website.
"While I was there I had to sell him as he was our best player and now I feel lucky to get to sign him again for Cardiff City for a reasonable price. I see this as money well spent. He's a playmaker, a quarterback if you will, someone who likes to get on the ball and can see a pass.
"He is technically very good, including set-pieces, and has great vision. Magnus will add a lot to Cardiff City and will blend in very well with the midfielders in the squad."
Solskjaer won his first game in charge of Cardiff when the Welsh side knocked Newcastle United out of the FA Cup with a 2-1 victory on Saturday. The 40-year-old has signed a rolling contract with Cardiff after Malky Mackay was sacked on 27 December following the collapse of his relationship with owner Vincent Tan.
Cardiff are currently just a point above the relegation zone.