| Position | D |
| Birth city | Livonia, Michigan, USA |
| Birth date | 1991-04-12 (35) |
| Height | 5'9'' |
| weight (lb) | 194 |
| Drafted | Not drafted |
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2011-12 | NHL | Boston Bruins | 2 | 0 | 1 | 1 | 0 | 0 |
| 2012-13 | NHL | Boston Bruins | 1 | 0 | 1 | 1 | -1 | 0 |
| 2013-14 | NHL | Boston Bruins | 79 | 14 | 26 | 40 | 18 | 28 |
| 2014-15 | NHL | Boston Bruins | 78 | 12 | 27 | 39 | 13 | 20 |
| 2015-16 | NHL | Boston Bruins | 81 | 4 | 40 | 44 | 9 | 33 |
| 2016-17 | NHL | Boston Bruins | 81 | 8 | 43 | 51 | -10 | 37 |
| 2017-18 | NHL | Boston Bruins | 76 | 14 | 45 | 59 | 0 | 36 |
| 2018-19 | NHL | Boston Bruins | 64 | 6 | 47 | 53 | -2 | 33 |
| 2019-20 | NHL | Boston Bruins | 61 | 9 | 40 | 49 | -4 | 33 |
| 2020-21 | NHL | St. Louis Blues | 51 | 2 | 30 | 32 | 11 | 25 |
| 2021-22 | NHL | St. Louis Blues | 64 | 9 | 34 | 43 | 23 | 48 |
| 2022-23 | NHL | St. Louis Blues | 63 | 7 | 25 | 32 | -26 | 49 |
| 2023-24 | NHL | St. Louis Blues | 77 | 4 | 35 | 39 | -31 | 32 |
| NHL Total | 778 | 89 | 394 | 483 | 0 | 374 | ||
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2012-13 | NHL | Boston Bruins | 15 | 4 | 2 | 6 | 5 | 0 |
| 2013-14 | NHL | Boston Bruins | 12 | 2 | 8 | 10 | -2 | 6 |
| 2017-18 | NHL | Boston Bruins | 11 | 3 | 9 | 12 | -5 | 8 |
| 2018-19 | NHL | Boston Bruins | 24 | 2 | 16 | 18 | 4 | 10 |
| 2019-20 | NHL | Boston Bruins | 13 | 0 | 6 | 6 | -6 | 22 |
| 2020-21 | NHL | St. Louis Blues | 4 | 0 | 2 | 2 | -4 | 2 |
| 2021-22 | NHL | St. Louis Blues | 3 | 0 | 3 | 3 | 1 | 0 |
| NHL Total | 82 | 11 | 46 | 57 | -7 | 48 | ||