| Position | D |
| Birth city | Brandon, Manitoba, CAN |
| Birth date | 1993-06-28 (33) |
| Height | 6'5'' |
| weight (lb) | 220 |
| Drafted | pick 16 round 2 by STL in 2011 |
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2015-16 | NHL | St. Louis Blues | 67 | 1 | 8 | 9 | 0 | 63 |
| 2016-17 | NHL | St. Louis Blues | 69 | 3 | 12 | 15 | 11 | 60 |
| 2017-18 | NHL | St. Louis Blues | 69 | 7 | 10 | 17 | -1 | 57 |
| 2018-19 | NHL | St. Louis Blues | 64 | 2 | 9 | 11 | 8 | 68 |
| 2019-20 | NHL | Carolina Hurricanes | 68 | 7 | 13 | 20 | 7 | 72 |
| 2020-21 | NHL | Montréal Canadiens | 55 | 3 | 10 | 13 | 28 | 25 |
| 2021-22 | NHL | Montréal Canadiens | 24 | 3 | 3 | 6 | -1 | 35 |
| 2022-23 | NHL | Montréal Canadiens | 61 | 2 | 11 | 13 | -29 | 58 |
| 2023-24 | NHL | Washington Capitals | 44 | 1 | 5 | 6 | -5 | 19 |
| 2023-24 | NHL | Toronto Maple Leafs | 9 | 0 | 0 | 0 | 3 | 4 |
| 2024-25 | NHL | Los Angeles Kings | 73 | 6 | 14 | 20 | 25 | 22 |
| 2025-26 | NHL | Los Angeles Kings | 82 | 2 | 21 | 23 | 14 | 25 |
| 2026-27 | NHL | Los Angeles Kings | 5 | 0 | 0 | 0 | -1 | 7 |
| NHL Total | 690 | 37 | 116 | 153 | 59 | 515 | ||
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2015-16 | NHL | St. Louis Blues | 16 | 1 | 0 | 1 | -4 | 8 |
| 2016-17 | NHL | St. Louis Blues | 11 | 3 | 3 | 6 | 12 | 14 |
| 2018-19 | NHL | St. Louis Blues | 22 | 1 | 6 | 7 | -2 | 10 |
| 2019-20 | NHL | Carolina Hurricanes | 4 | 1 | 0 | 1 | 4 | 2 |
| 2020-21 | NHL | Montréal Canadiens | 22 | 0 | 6 | 6 | -3 | 10 |
| 2023-24 | NHL | Toronto Maple Leafs | 7 | 0 | 1 | 1 | -1 | 6 |
| 2024-25 | NHL | Los Angeles Kings | 6 | 0 | 1 | 1 | 2 | 2 |
| 2025-26 | NHL | Los Angeles Kings | 4 | 1 | 0 | 1 | -3 | 0 |
| NHL Total | 92 | 7 | 17 | 24 | 5 | 52 | ||