He played two seasons with Lokomotiv Yaroslavl of the Kontinental Hockey League before moving to North America in 2020, and made his NHL debut in 2021.

[3] He began the 2020–21 season playing in the American Hockey League with the Syracuse Crunch, and made his NHL debut on 6 March 2021 against the Nashville Predators.

[4] Denisenko later made his NHL playoff debut on 13 June 2023, filling in for an injured Matthew Tkachuk in game 5 of the 2023 Stanley Cup Finals against the Vegas Golden Knights.

[9] Denisenko was selected to the Russian team for the 2019 World Junior Championships in Vancouver, Canada.

[10] Denisenko was the tournament scoring leader, recording four goals and nine points in seven games to help Russia claim the Bronze medal.