[3] In 2020 he was assigned to the backup crew of Soyuz MS-17, backing up Russian cosmonaut Sergey Kud-Sverchkov as Flight Engineer on ISS Expedition 63/64.

[4] Amidst the COVID-19 pandemic, he traveled to the Johnson Space Center in Houston, Texas for training on the ISS USOS.

[5] He returned to Earth along with Mark T. Vande Hei with Soyuz MS-19 on 30 March 2022, having spent a total of 355 days in space.

[7] Anton Shkaplerov and the crew of the film The Challenge: actress Yulia Peresild and director Klim Shipenko, launched to the ISS on the Soyuz MS-19.

[8][9] The alternates chosen after passing the medical committee are: New Drama Theater actress Alyona Mordovina, director Alexey Dudin[10] and the commander Oleg Artemyev.