[2] In his second match in the top flight, Matousek scored two goals in Příbram's 4–2 home win against Bohemians Prague.

[3] He stayed in Příbram on loan that was supposed to last until January 2019, but was recalled by Slavia due to an injury.

[5] Matoušek made his debut for Slavia in a 3–1 Czech First League win at Slovácko.

[6] He scored his first goal for the club on 25 October 2018 in their 1–0 UEFA Europa League group stage win at Copenhagen.

[8] In June 2023, Matousek debuted for the Czech senior squad during a UEFA Euro 2024 qualifying Group E match against Faroe Islands.