The 25-year-old defender has signed a four-year deal with Chris Hughton's side, and the move is subject to the relevant paperwork being completed.
|12/5||Norwich are 12/5 with Coral to be relegated
“He can also play anywhere on the left hand side so he brings us good flexibility in that sense, plus at 25 he’s at an age where he has some experience and also some time to improve.
“At this time it’s about improving the squad that we have and Martin certainly does that.”
The Sweden international is Norwich's fourth signing of the summer following the arrivals of Ricky van Wolfswinkel, Nathan Redmond and Javier Garrido, who completed a permanent move from Lazio following a season-long loan spell at Carrow Road.