He is on the books of FK Kolin and wears shirt number 12. His main role on the pitch is Defender. His estimated market valuation currently stands at 75K .

His latest transfer saw him join SK Benatky nad Jizerou from Vysocina Jihlava via Free on 2026-02-13.

Across the Czech Third League 2025-2026, martin sladek appeared in 16 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.