Career
Before playing in the NHL, Forsberg played two seasons with Modo Hockey of the Elitserien.
He was drafted 188th overall by the Columbus Blue Jackets in the 2011 NHL entry draft. On 28 May 2013, Forsberg signed a three-year, $1.965 million entry-level contract to join the Blue Jackets. He was sent down to play for their AHL-affiliate Springfield Falcons.
On 1 November 2014, the Blue Jackets called him up and Forsberg made his NHL debut, stopping 26 of 29 shots in a 3–2 loss against the New Jersey Devils. On 2 January 2016, he entered the game in relief of Curtis McElhinney and stopped all 6 shots he faced for his first NHL career victory in a 5–4 shootout win against the Washington Capitals. On 17 June 2016, Forsberg signed a one-year contract to stay with the Jackets.
On 23 June 2017, the Blue Jackets traded Forsberg along with Brandon Saad and a 2018 fifth-round draft pick to the Chicago Blackhawks in exchange for Artemi Panarin, Tyler Motte, and a 2017 sixth-round draft pick. On 26 June, Forberg signed a two-year, $1.5 million contract to stay with the Blackhawks. He played 35 regular season games, posting a 10—16—4 record during his time with the Blackhawks.
On 24 June 2019, the Blackhawks traded Forsberg along with Gustav Forsling to the Carolina Hurricanes in exchange for Calvin de Haan and Aleksi Saarela. he played 3 regular season games with the Hurricanes and mainly spent time with their AHL-affiliate Charlotte Checkers.
On 17 March 2021, Forsberg's contract was picked up off waivers by the Ottawa Senators. On 21 March 2022, Forsberg signed a three-year, $8.25 million contract to stay with the Senators. On 11 February 2023, Forsberg tore both of his medial collateral ligaments (MCL) and crashing into his teammates and needed to be stretchered off the ice. He was ruled out for the rest of the season and needed surgery for his torn MCLs.
On 1 July 2025, Forsberg signed a two-year, $4.5 million contract to join the Los Angeles Kings.
