Trubin had his breakthrough in the 2020–21 season, taking club legend's place Andriy Pyatov in the starting eleven, making 30 appearances, as he made his debut in the Champions League in a 3–2 away win against Real Madrid on 21 October 2020, and also had two clean sheets against Inter Milan in the competition, being creddited as the club's player of the season by Shakthar's fans.