Ondřej Zmrzlý

Ondřej Zmrzlý (born 22 April 1999) is a Czech professional footballer who plays as a left-back for Ekstraklasa club Górnik Zabrze.

Club career Zmrzlý played for the youth team of Sigma Olomouc, with which he also played in the 2018–19 UEFA Youth League. He made his senior league debut for Sigma Olomouc on 13 July 2019 in their Czech First League 3–1 away loss against Viktoria Plzeň. On 23 August 2019, he made his debut in the starting lineup in Sigma's 2–0 win against Teplice. Since then, he has played over 100 matches for Sigma.

On 5 January 2024, Zmrzlý signed a contract with Slavia Prague until June 2027.

On 25 February 2026, Zmrzlý joined Polish Ekstraklasa club Górnik Zabrze on loan for the rest of the season, with an option to buy. On 17 June 2026, Górnik triggered their buy option and signed Zmrzlý to a three-year deal.

International career Zmrzlý played several matches for the Czech U16 and U20 youth teams.

Player profile Style of play He is a left-footed player. He started his career as a defensive midfielder, but more often plays as a left-back. He is appreciated for his versatility.

Honours Slavia Prague Czech First League: 2024–25

Górnik Zabrze Polish Cup: 2025–26