Daněk made his professional debut for Sigma Olomouc in a 3-1 Czech Cup win over Jablonec in March 2020.

In the 2020-21 season Daněk played a more central role for Sigma Olomouc, scoring his first goal for the club in a 4–1 home win against Opava.

[3] In June 2022 Daněk transferred to fellow Czech First League club Sparta Prague on a multi-year deal.

[7] On 6 February 2025, Daněk joined LASK on a half-year loan deal with option to make transfer permanent.

This biographical article related to association football in the Czech Republic, about a midfielder, is a stub.