Player Summary
I. Kostis's club history lists 7 spells across 7 clubs.
Season goals0
Season assists0
Rating6.96
Transfer history
| Date | From | To | Terms |
|---|---|---|---|
| 2026-07-30 |  Atletico Madrid |  Castellón | Transfer |
| 2026-07-29 | Atletico Madrid | Castellón | Transfer |
Club history
| Period | Team | Competition | Country |
|---|---|---|---|
| 2026-2027 | CastellónCurrent |  Segunda División |  Spain |
| 2025-2026 |  Arsenal |  Premier League |  England |
| 2022-2026 | Atletico Madrid |  La Liga | Spain |
| 2022-2026 |  Atlético Madrid II |  Primera División RFEF - Group 2 | Spain |
| 2022-2023 |  Granada II |  Segunda División RFEF - Play-offs | Spain |
| 2021-2023 |  Atlético Madrid U19 |  UEFA Youth League | World |
| 2020 |  Cyprus U17 | - |  Cyprus |