| Position | D |
| Birth city | Uppsala, undefined, SWE |
| Birth date | 2000-03-07 (26) |
| Height | 5'11'' |
| weight (lb) | 189 |
| Drafted | pick 29 round 1 by TOR in 2018 |
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2019-20 | NHL | Toronto Maple Leafs | 28 | 1 | 7 | 8 | -7 | 10 |
| 2020-21 | NHL | Toronto Maple Leafs | 9 | 0 | 4 | 4 | 6 | 0 |
| 2021-22 | NHL | Toronto Maple Leafs | 51 | 5 | 11 | 16 | 9 | 4 |
| 2022-23 | NHL | Toronto Maple Leafs | 52 | 4 | 16 | 20 | 10 | 23 |
| 2022-23 | NHL | Washington Capitals | 19 | 3 | 12 | 15 | -7 | 16 |
| 2023-24 | NHL | Washington Capitals | 68 | 3 | 20 | 23 | -13 | 24 |
| 2024-25 | NHL | Washington Capitals | 82 | 4 | 26 | 30 | 13 | 23 |
| 2025-26 | NHL | Washington Capitals | 73 | 5 | 24 | 29 | 4 | 12 |
| NHL Total | 382 | 25 | 120 | 145 | 15 | 112 | ||
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2020-21 | NHL | Toronto Maple Leafs | 5 | 1 | 0 | 1 | -3 | 0 |
| 2023-24 | NHL | Washington Capitals | 1 | 0 | 0 | 0 | 0 | 2 |
| 2024-25 | NHL | Washington Capitals | 10 | 0 | 1 | 1 | -1 | 0 |
| NHL Total | 16 | 1 | 1 | 2 | -4 | 2 | ||