Miroshnichenko, 18, was ranked third among European left wings and 11th among all European forwards by NHL Central Scouting. The Primmorsky Krai, Russia native spent the 2021-22 season with Omsk Krylia in the Supreme Hockey League (Russia-2) recording 16 points (10g, 6a) in 31 games. The 6'1", 185-pound forward captained Russia to the gold medal at the 2021 Hlinka Gretzky Cup, where he recorded nine points (4g, 5a) in five games. Miroshnichenko's nine points during the tournament ranked tied for fourth among all skaters and his +7 plus/minus rating ranked tied for second. Miroshnichenko also represented Russia at the 2021 4 Nations Tournament, where he recorded two points (1g, 1a) in three games.
Miroshnichenko becomes the ninth Russian to be drafted by the Capitals in the first round in team history. Additionally, he is the 11thleft wing to be drafted by Washington in the first round and the first since Jakub Vrana (13th overall) in 2014.