Domestic-league season · Sparta Praha.
J. Zelený is a 33-year-old full-back at Sparta Praha, rated 0.6 overall by Field Insider's model, ranking 282nd of 324 in the Czech Liga. A seasoned veteran, he has been a rotation option this season (57.5% of available minutes). His defensive output reads 2.66 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Zelený.
Judged on this season alone, Zelený graded 21 — a strong campaign that ranks top 26% of the 50 full-backs in the Czech Liga, on 8 clean sheets and 2.658 defensive actions per 90.
We hold a single season for Zelený, so there's no year-on-year comparison to draw yet — the read above is this campaign only.
On long-term talent our Rating reads 1, 38th of 50 of the 50 full-backs in the Czech Liga. At 33 Zelený is into the veteran stage, where the age curve weighs on the projection, and a market index of 0 reflects that trajectory.
2.66 tackles, blocks & interceptions per 90 — moderate defensive volume, with 8 clean sheets across 25 appearances. Behind a title-challenging side (2nd of 6) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume. Going forward he chipped in 1 goal and 3 assists — a useful bonus from the back.
With a Rating of 0.6, Zelený carries the 38th-highest potential of the full-backs in the Czech Liga of 50. Defensively he reads as moderate defensive volume (2.66 tackles, blocks & interceptions per 90), with a bit more on the ball than most in the role. Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.7× and falling).
Generated from Field Insider's rating model · AI-written analysis to follow.
The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 17–37 (~0), then tapers with age. At 33, Zelený sits on 0, at or near its peak. The blue line is Zelený's projected Rating — 0.6 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.
No transfer news found for this player.
