Hellberg, 31, spent the 2021-22 season with Sochi HC of the Kontinental Hockey League, posting a 2.42 goals-against average, 0.917 save percentage and five shutouts in 37 games. The 6-foot-6, 209-pound netminder has suited up the last five seasons in the KHL for Kunlun Red Star (2017-18), St. Petersburg SKA (2018-21) and Sochi, recording an 81-64-14 record in 169 appearances. A native of Uppsala, Sweden, Hellberg also represented his country at the 2022 Olympic Winter Games, appearing in two games and posting a 1-0-1 record, along with a 2.46 goals-against average and a 0.933 save percentage. Additionally, Hellberg played for Team Sweden at the 2018 IIHF World Championship and posted a 3-0-0 record in three starts en route to helping his country win the gold medal.
Originally drafted by the Nashville Predators in the second round (38th overall) of the 2011 NHL Entry Draft, Hellberg spent five seasons (2012-17) in North America before playing in the KHL. Hellberg has made four NHL appearances for the Predators and New York Rangers, recording a 1-0-0 record with a 2.70 goals against average and a 0.868 save percentage. He also suited up in 187 American Hockey League games between the Milwaukee Admirals (2012-15) and Hartford Wolf Pack (2015-17), recording an 84-71-28 record, a 2.49 goals against average and a 0.914 save percentage, including a 30-win season for the Wolf Pack in 2015-16. Hellberg was named to the AHL All-Star Classic during the 2014-15 season as a member of the Admirals. He also made nine appearances in parts of two seasons for the ECHL's Cincinnati Cyclones, posting a 6-2-1 record.