2008-09: Magnus Nygren played for the lower division Skare BK men’s club in his hometown of Karlstad after spending two seasons with Farjestad’s midget program. In 41 games he scored 7 goals with 21 assists and had 32 PMs. In two games with Skare BK’s U-20 squad, Nygren scored 2 goals with 3 assists.
2009-10: Nygren made his Elitserien debut, appearing in nine games with Farjestad (no points, 4 PMs) and split his season between Mora (Allsvenskan) and Skare BK. In 21 games with Mora, which finished seventh in the 14-team second division, Nygren scored 2 goals with 5 assists and had 10 PMs. In 24 games with Skare BK, Nygren scored 9 goals with 18 assists and had 10 PMs. Nygren was eligible for the 2010 NHL Draft but was not ranked among European skaters by Central Scouting and was not selected.
2010-11: Prior to the season, few observers could have predicted that Nygren would play an integral role in Farjestad’s Swedish Elite league championship and later be selected in the NHL draft. Nygren split the regular season between Farjestad and Bofors (Allsvenskan) increasing his offensive output and proving a dangerous threat on the Farjestad power play – particularly in the playoffs. In 22 Elitserien regular season games, Nygren scored 4 goals (3 on the power play) with 11 assists and was -2 with 4 PMs. In the Elitserien playoffs, Nygren scored two of his three goals on the power play and added 7 assists; finishing with a +7 plus-minus in 14 games. In fact, his numbers at the Elitserien level were even better than his output with Bofors in Allsvenskan, where he scored 5 goals with 6 assists and was an even plus-minus in 35 games. Once again unranked among the top European skaters by Central Scouting prior to the draft, Nygren was selected by Montreal in the 4th round (113th overall) of the 2011 NHL Draft.
2011-12: Nygren played all but three games for the Färjestads BK (SEL) where he scored seven goals along with 11 assists and a minus 10 rating in 50 games. The offensively talented defenseman runs the power play for his team and has worked this season to play better defensively. Nygren contributed two goals for Färjestads BK in the Swedish Elite league Playoffs. The offensive defenseman wasn’t able produce points on the power play similar to last season’s playoffs totals.
2012-13: Nygren was the second-leading scorer among defensemen for Farjestads in Sweden behind long-time AHL veteran Chris Lee. He scored 12 goals with 29 assists in 54 games and was +20 with 30 penalty minutes. Farjestad finished second in the Elitserien and reached the playoff semifinals. Nygren scored 1 goal with 3 assists and was +3 with 10 penalty minutes in 10 playoff games. He signed a two-year entry-level contract with Montreal in May of 2013.
2013-14: Nygren skated in 16 games with Montreal AHL affiliate Hamilton before being loaned to Farjestads in November and skated for the Sweden in the 2014 IIHF World Championship. He scored 1 goal with 7 assists and was -9 with 14 penalty minutes with the Bulldogs. Nygren scored 12 goals with 8 assists and was +6 with 8 penalty minutes in 25 regular season games with Farjestads. The club reached the SHL finals against Skelleftea after finishing fifth in the regular season. Nygren scored 2 goals with 3 assists and was -8 with 6 penalty minutes in 15 playoff games. He scored 1 goal with 4 assists and had an even plus/minus with 2 penalty minutes, averaging 10 minutes of ice time, in 10 games for Sweden at the World Championship. Sweden finished third, shutting out the Czech Republic, 3-0, in the bronze medal game.
2014-15: Nygren returned to Hamilton to skate for the Bulldogs and was off to a fast start before suffering a concussion at the end of November. He scored 4 goals with 6 assists and was +2 with 2 penalties in 15 games before suffering his season-ending injury. Nygren signed a four-year contract with Farjestads in May 2015. He was tendered a qualifying offer by Montreal, allowing the Canadiens to retain his NHL rights.
Nygren is an offensively gifted blue-liner who has made considerable improvement on the defensive side of the game since he was drafted. He is at his best when he is moving the puck up the ice, carrying it through the neutral zone and sustaining pressure in the offensive zone. He has a cannon of a shot that he wires through traffic, and his wrist shot is heavy and accurate. Defensively, Nygren has shown commitment to applying himself in corner battles and using his size and frame to assert himself more physically. He has become more consistent when it comes to playing the body. His skills were noticed to a point where he was on the verge of being called up, before a concussion took him out for the remainder of the season.
Nygren is on contract with Färjestad BK for the next four seasons. He had a dispute during his time with Hamilton, stating several unpleasant comments regarding the city, before returning back to his home-country of Sweden.