| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2025/2026 | Sheffield Wed | Championship | 3 | 0 | 0 | 0 | 0 | 6.7 |
| 2025/2026 | Middlesbrough U21 | Premier League 2 | 3 | 0 | 0 | 0 | 0 | – |
| 2024/2025 | Middlesbrough | Championship | 17 | 0 | 0 | 0 | 0 | 6.7 |
| 2023/2024 | Middlesbrough | Championship | 35 | 0 | 0 | 2 | 0 | 6.8 |
| 2022/2023 | QPR | Championship | 45 | 1 | 0 | 2 | 0 | 6.7 |
| 2021/2022 | QPR | Championship | 27 | 0 | 0 | 2 | 0 | 6.8 |
| 2020/2021 | QPR | Championship | 42 | 0 | 0 | 1 | 1 | 6.9 |
| 2019/2020 | Doncaster | League One | 26 | 0 | 0 | 1 | 0 | 6.9 |
| 2018/2019 | Dundee FC | Premiership | 16 | 0 | 0 | 0 | 0 | – |
| 2018/2019 | Stevenage | League Two | 13 | 0 | 0 | 0 | 0 | – |
| 2017/2018 | Whitehawk | National League South | 1 | 1 | 0 | 0 | 0 | – |
| Total | 228 | 2 | 0 | 8 | 1 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| 03 Jan 2026 | Sheffield Wed | Middlesbrough | Return from loan | |
| - | Middlesbrough | Sheffield Wed | Loan | |
| 07 Aug 2023 | QPR | Middlesbrough | Transfer | |
| 03 Aug 2020 | Doncaster | QPR | Return from loan | |
| - | QPR | Doncaster | Loan | |
| - | Dundee FC | QPR | Return from loan | |
| 01 Oct 2019 | QPR | Dundee FC | Loan | |
| 01 Jan 2019 | Stevenage | QPR | Return from loan | |
| 08 Mar 2018 | QPR | Stevenage | Loan | |
| 12 Mar 2017 | Whitehawk | QPR | Return from loan | |
| - | QPR | Whitehawk | Loan | |
| - | Duisburg | QPR | Free agent | |
| 02 Jan 2016 | Grasshoppers | Duisburg | Free agent | |
| - | Grenchen | Grasshoppers | Return from loan | |
| 07 Jan 2012 | Grasshoppers | Grenchen | Loan |
S. Dieng career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.