Poland international Krystian Bielik joined the Bluebirds in August 2026 on a three-year deal, for an undisclosed fee, from West Bromwich Albion.

Bielik began his footballing journey in his native Poland with Legia Warsaw, before being picked up by Arsenal. 

Following an impressive loan with Charlton Athletic, Krystian permanently joined Derby County, where he spent four years.

Bielik has spent the last four seasons in the Midlands with Birmingham City and most recently the Baggies. The 28-year-old can operate as a midfielder or at centre-back, and has almost 150 Sky Bet Championship appearances under his belt, along with 11 international caps for Poland.