| Competition | Goals | Apps | Started | Minutes | Sub On | Sub Off | ||
|---|---|---|---|---|---|---|---|---|
| Germany | ||||||||
| Bundesliga | 23 | 133 | 113 | 9,824' | 20 | 64 | 21 | 0 |
| DFB Pokal | 3 | 14 | 11 | 1,038' | 3 | 6 | 2 | 0 |
| Super Cup | 0 | 1 | 0 | 47' | 1 | 0 | 1 | 0 |
| Europe | ||||||||
| UEFA Europa League | 4 | 35 | 29 | 2,677' | 6 | 14 | 1 | 0 |
| UEFA Champions League | 0 | 26 | 21 | 1,677' | 5 | 12 | 3 | 0 |
| Scotland | ||||||||
| Premiership | 3 | 36 | 31 | 2,783' | 5 | 6 | 2 | 0 |
| League Cup | 0 | 3 | 3 | 229' | 0 | 1 | 1 | 1 |
| FA Cup | 0 | 3 | 2 | 217' | 1 | 0 | 1 | 0 |
| England | ||||||||
| Premier League | 0 | 24 | 14 | 1,246' | 10 | 10 | 2 | 0 |
| EFL Vertu Trophy | 0 | 4 | 4 | 380' | 0 | 1 | 1 | 0 |
| FA Cup | 1 | 3 | 1 | 108' | 2 | 1 | 0 | 0 |
| Carabao Cup | 0 | 2 | 2 | 185' | 0 | 0 | 1 | 0 |
| Community Shield | 1 | 1 | 1 | 120' | 0 | 0 | 0 | 0 |
| World | ||||||||
| J.League World Challenge | 0 | 1 | 0 | 27' | 1 | 0 | 0 | 0 |
| Total | 35 | 286 | 232 | 20,558' | 54 | 115 | 36 | 1 |
| Club | Season | League | National cup | League cup | Europe | Other | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | Apps | Gls | Apps | Gls | Apps | Gls | Apps | Gls | Apps | Gls | Apps | Gls | ||
Celtic | 2019/2020 | Premiership | 14 | 2 | 3 | 0 | 3 | 0 | 1 | 0 | - | - | 21 | 2 |
| 2020/2021 | Premiership | 22 | 1 | - | - | - | - | 8 | 0 | - | - | 30 | 1 | |
| Total | 36 | 3 | 3 | 0 | 3 | 0 | 9 | 0 | - | - | 51 | 3 | ||
Bayer Leverkusen | 2020/2021 | Bundesliga | 10 | 0 | 1 | 0 | - | - | 2 | 0 | - | - | 13 | 0 |
| 2021/2022 | Bundesliga | 25 | 1 | 2 | 1 | - | - | 7 | 0 | - | - | 34 | 2 | |
| 2022/2023 | Bundesliga | 34 | 8 | 1 | 0 | - | - | 13 | 1 | - | - | 48 | 9 | |
| 2023/2024 | Bundesliga | 31 | 9 | 6 | 2 | - | - | 10 | 3 | - | - | 47 | 14 | |
| 2024/2025 | Bundesliga | 33 | 5 | 4 | 0 | - | - | 10 | 0 | 1 | 0 | 48 | 5 | |
| Total | 133 | 23 | 14 | 3 | - | - | 42 | 4 | 1 | 0 | 190 | 30 | ||
Liverpool | 2025 | - | - | - | 1 | 0 | - | - | - | - | - | - | 1 | 0 |
| 2025/2026 | Premier League | 21 | 0 | 3 | 1 | 1 | 0 | 9 | 0 | 1 | 1 | 35 | 2 | |
| 2026/2027 | Premier League | 3 | 0 | - | - | 1 | 0 | 1 | 0 | - | - | 5 | 0 | |
| Total | 24 | 0 | 4 | 1 | 2 | 0 | 10 | 0 | 1 | 1 | 41 | 2 | ||
| Career total | 193 | 26 | 21 | 4 | 5 | 0 | 61 | 4 | 2 | 1 | 282 | 35 | ||
