Domestic-league season · Newells Old Boys.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 CONMEBOL - U17at Argentina U17 | 6 | 0 | 2 | 314 | 6.65 |
 Liga Profesional Argentina | 5 | 0 | 0 | 88 | 6.67 |
J. Mattar is a 17-year-old central midfielder at Newells Old Boys, rated 41.9 overall by Field Insider's model. A teenage prospect, he has been a fringe squad member this season (5.4% of available minutes). His defensive output reads 3.07 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Mattar.
On the season, Mattar graded 2 for current form (age-blind), on 0 goals, 0 assists and 3.068 defensive actions per 90.
We hold a single season for Mattar, 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 42. At 17 Mattar is still climbing toward his ceiling, and a market index of 21.7 reflects that trajectory.
3.07 tackles, blocks & interceptions per 90 — moderate defensive volume across 5 appearances. Doing that for a relegation-threatened side (15th of 15) 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.
Rated 41.9 overall — developing / rotation level. Defensively he reads as moderate defensive volume (3.07 tackles, blocks & interceptions per 90). At 17 the trajectory points up — potential sits near its ceiling (100/100) 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 (~31), then tapers with age. At 17, Mattar sits on 21.7, still climbing toward its peak. The blue line is Mattar's projected Rating — 41.9 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.
