Cardiff City have signed Norway midfielder Magnus Wolff Eikrem from Dutch club Heerenveen for an undisclosed fee.
The 23-year-old has joined in time for the Premier League visit of West Ham on Saturday.
Eikrem has played under new Cardiff City manager Ole Gunnar Solskjaer for Manchester United reserves and Molde.
He only joined Heerenveen from Molde in the summer and made 13 appearances in the Dutch top flight this season.
Eikrem was on Manchester United's books from 2006 until 2011 but never made a first-team appearance.
"I've known Magnus for many years, having worked with him at Manchester United and then signing him for Molde," said Solskjaer.
"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's 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."
Cardiff have also been linked with another Norwegian midfielder, Mats Moller Daehli.