| Position | D |
| Birth city | Charlottetown, Prince Edward Island, CAN |
| Birth date | 1986-10-12 (40) |
| Height | 6'4'' |
| weight (lb) | 210 |
| Drafted | pick 25 round 2 by CBJ in 2005 |
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2009-10 | NHL | Boston Bruins | 19 | 1 | 0 | 1 | -5 | 21 |
| 2010-11 | NHL | Boston Bruins | 67 | 3 | 12 | 15 | 30 | 96 |
| 2011-12 | NHL | Boston Bruins | 72 | 2 | 8 | 10 | 16 | 99 |
| 2012-13 | NHL | Boston Bruins | 32 | 1 | 3 | 4 | 0 | 60 |
| 2013-14 | NHL | Boston Bruins | 30 | 1 | 5 | 6 | 12 | 69 |
| 2014-15 | NHL | Boston Bruins | 63 | 1 | 6 | 7 | -2 | 85 |
| 2015-16 | NHL | Boston Bruins | 64 | 1 | 8 | 9 | 6 | 89 |
| 2016-17 | NHL | Boston Bruins | 77 | 2 | 8 | 10 | 4 | 71 |
| 2017-18 | NHL | Boston Bruins | 38 | 1 | 3 | 4 | -1 | 62 |
| 2018-19 | NHL | New York Rangers | 36 | 2 | 3 | 5 | 3 | 33 |
| 2018-19 | NHL | Columbus Blue Jackets | 14 | 1 | 1 | 2 | -1 | 9 |
| NHL Total | 512 | 16 | 57 | 73 | 62 | 694 | ||
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2009-10 | NHL | Boston Bruins | 9 | 0 | 0 | 0 | -4 | 6 |
| 2010-11 | NHL | Boston Bruins | 23 | 0 | 4 | 4 | 8 | 14 |
| 2012-13 | NHL | Boston Bruins | 22 | 2 | 2 | 4 | 9 | 10 |
| 2016-17 | NHL | Boston Bruins | 2 | 0 | 1 | 1 | 0 | 0 |
| 2017-18 | NHL | Boston Bruins | 12 | 1 | 1 | 2 | 0 | 0 |
| NHL Total | 68 | 3 | 8 | 11 | 13 | 30 | ||
