
Domestic-league season · Cork City.
M. Kiernan is a 19-year-old central defender at Cork City, rated 24.2 overall by Field Insider's model, ranking 6th of 20 in the Ireland tier 1 and 1028th of 1113 U-21 players tracked. A young player, he has been a rotation option this season (49.7% of available minutes). His defensive output reads 3.47 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Kiernan.
Judged on this season alone, Kiernan graded 8 — a strong campaign that ranks top 29% of the 7 centre-backs in the Ireland tier 1, on 0 clean sheets and 3.468 defensive actions per 90.
We hold a single season for Kiernan, 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 24, top 29% of the 7 centre-backs in the Ireland tier 1. At 19 Kiernan is still climbing toward his ceiling, and a market index of 3.9 reflects that trajectory.
3.47 tackles, blocks & interceptions per 90 — moderate defensive volume across 23 appearances. Doing that for a relegation-threatened side (10th of 10) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight. Going forward he chipped in 0 goals and 1 assist — a useful bonus from the back.
With a Rating of 24.2, Kiernan carries the 2nd-highest potential of the centre-backs in the Ireland tier 1 (top 29%), and he is posting that for a relegation-threatened side (Cork City finished 10th of 10) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as moderate defensive volume (3.47 tackles, blocks & interceptions per 90). At 19 the trajectory points up — potential sits near its ceiling (99/100) and market value should climb as minutes and output follow.
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 23–27 (~5), then tapers with age. At 19, Kiernan sits on 3.9, still climbing toward its peak. The blue line is Kiernan's projected Rating — 24.2 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.