[1][2] Šalé played as a youth with hometown club HC Kometa Brno, first appearing as a 13-year-old at the under-16 level.
Eligible for major junior ice hockey in North America, Šalé was selected in the first round, 29th overall, in the 2022 CHL Import Draft by the Barrie Colts.
Touted as a potential first-round pick, he was selected 20th overall by the Seattle Kraken in the 2023 NHL entry draft.
[5] Šalé started the 2023–24 season with the Colts, although he was eventually traded to the Kitchener Rangers.
[8] Šalé won a bronze medal the following year, in a comeback win that saw Team Czechia overcome a 5–2 deficit.