Tomas joined Town in May 2019 following a two-and-a-half-year spell with Gillingham.

He signed for Blues having made 52 appearances in the 2018/19 season, keeping 15 clean sheets.

The shot-stopper has represented Czech Republic at U16, U17 and U18 level.

He made his debut for the club on 3 August 2019, keeping a clean sheet in a 1–0 away win over Burton Albion at the Pirelli Stadium.