J. Karlström is a midfielder for Udinese and , and has made 301 league appearances.
301
League apps
13
League goals
12
League assists
Club career
| Season | Club | Apps | Starts | Goals | Assists |
|---|---|---|---|---|---|
| 25/26 |  Udinese | 36 | 36 | 1 | 0 |
| 24/25 | Udinese | 37 | 37 | 0 | 3 |
| 24/25 |  Lech Poznan | 2 | 2 | 0 | 0 |
| 23/24 | Lech Poznan | 29 | 29 | 2 | 2 |
| 22/23 | Lech Poznan | 27 | 26 | 1 | 1 |
| 21/22 | Lech Poznan | 32 | 30 | 1 | 0 |
| 20/21 | Lech Poznan | 16 | 15 | 0 | 0 |
| 2020 |  Djurgardens IF | 28 | 28 | 1 | 1 |
| 2019 | Djurgardens IF | 27 | 27 | 2 | 3 |
| 2018 | Djurgardens IF | 25 | 20 | 0 | 1 |
| 2017 | Djurgardens IF | 24 | 14 | 3 | 1 |
| 2017 |  IF Brommapojkarna | 2 | 2 | 1 | 0 |
| 2016 | Djurgardens IF | 16 | 11 | 1 | 0 |
| Total | 301 | 277 | 13 | 12 |
25/26 by competition
| Competition | Apps | Goals | Assists |
|---|---|---|---|
| Serie A | 36 | 1 | 0 |
| Coppa Italia | 2 | 0 | 0 |
Honours
Super Cup 2022
Dashed = runner-up.