KHL (2012–2020) Sorokin played as a youth with local club Vympel Mezhdurechensk, before joining KHL club
Metallurg Novokuznetsk as a 17-year old in 2012. He made his professional and KHL debut with Novokuznetsk during the following
2012–13 season, appearing in relief during a 8–6 defeat to
Barys Astana on 7 January 2013. Following two promising seasons, Sorokin was selected by the
New York Islanders, 78th overall, in the
2014 NHL entry draft. During his third year within Metallurg Novokuznetsk in the
2014–15 season, Sorokin appeared in 22 games before he was traded to perennial powerhouse club,
CSKA Moscow, in exchange for financial compensation on 24 December 2014. Sorokin continued his KHL career with CSKA Moscow by signing a three-year contract extension on 10 June 2017. In 2019, Sorokin won the
Gagarin Cup with CSKA Moscow, also being named most valuable player of the
2019 Gagarin Cup playoffs.
New York Islanders (2020–present) On 13 July 2020, Sorokin was signed to a one-year, entry-level contract with draft club, the New York Islanders, for the remainder of the
2019–20 season. However, unsigned prospects from other leagues, such as Sorokin in the KHL, were ruled ineligible to feature in the Return to Play phase following the outbreak of the
COVID-19 pandemic. The contract completed Sorokin's entry-level status to become a restricted free agent, and Sorokin was signed by the Islanders to a one-year, $2 million contract extension for the
2020–21 season the day after his entry-level contract was essentially nullified. Sorokin made his NHL and Islanders debut on 16 January 2021, against the
New York Rangers. Sorokin was originally slated to be the backup for the game when the intended starter,
Semyon Varlamov, was injured during warmups. The Islanders lost the game 5–0, while Sorokin allowed five goals on 31 shots. Sorokin's first NHL win, and first NHL shutout, came on 16 February, in the Islanders' 3–0 win over the
Buffalo Sabres. He made 20 saves in the win. Sorokin made his
Stanley Cup playoffs debut against the
Pittsburgh Penguins in game 1, winning 4–3 in overtime. while Varlamov recovered from injury. Varlamov took the starting role back in games 2 and 3 but struggled while playing through his injuries, losing both games. Sorokin took back the starting job in game 4 and won games 4–6, helping the Islanders win the series. Sorokin lost game 1 against the
Boston Bruins in the second round, and Varlamov became the starting goaltender for the remainder of the playoffs. On 1 September 2021, Sorokin was re-signed to a three-year, $12 million contract by the Islanders. Sorokin's first NHL point came on 9 March 2023, when he received an assist after poke-checking a puck which led to a breakaway for
Brock Nelson and the game winning goal in overtime against the Penguins. In the course of the
2022–23 season, Sorokin recorded a 31–22–7 with a .924 save percentage and a league-leading six shutouts. In recognition of his achievements, he was named a finalist for the
Vezina Trophy, awarded to the league's best goaltender. Sorokin was widely credited as the main reason the Islanders qualified for the
2023 Stanley Cup playoffs. They were ultimately ousted by the
Carolina Hurricanes in the first round. On 1 July 2023, Sorokin signed an eight-year, $66 million contract extension with the Islanders. On 1 March 2025, Sorokin became the
17th goaltender in NHL history to be credited with a goal when after making a save,
Nashville Predators forward
Steven Stamkos accidentally sent the puck into his own net. As Sorokin had been the last Islanders player to touch the puck, he was credited with the goal. On 6 April, in a game against the
Washington Capitals, Sorokin allowed
Alexander Ovechkin's 895th career NHL goal, which broke
Wayne Gretzky's record of 894, making Ovechkin the all-time leading goal-scorer in NHL history. Sorokin also became the 183rd goaltender to give up a goal from Ovechkin. On 6 December 2025, Sorokin recorded his 25th career shutout which tied
Chico Resch for the most shutouts in Islanders history, in a 2–0 victory over the
Tampa Bay Lightning. On 6 January 2026, Sorokin recorded his 26th career shutout, surpassing Resch on the Islanders' all-time shutouts list, in a 9–0 win over the
New Jersey Devils. ==International play==