| Position | D |
| Birth city | Calgary, Alberta, CAN |
| Birth date | 1985-10-12 (41) |
| Height | 6'1'' |
| weight (lb) | 210 |
| Drafted | pick 29 round 1 by WSH in 2004 |
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2005-06 | NHL | Washington Capitals | 22 | 1 | 2 | 3 | -8 | 18 |
| 2006-07 | NHL | Washington Capitals | 70 | 2 | 10 | 12 | -10 | 36 |
| 2007-08 | NHL | Washington Capitals | 82 | 18 | 38 | 56 | 6 | 62 |
| 2008-09 | NHL | Washington Capitals | 68 | 31 | 42 | 73 | 24 | 68 |
| 2009-10 | NHL | Washington Capitals | 75 | 19 | 57 | 76 | 39 | 54 |
| 2010-11 | NHL | Washington Capitals | 49 | 8 | 16 | 24 | 6 | 48 |
| 2011-12 | NHL | Washington Capitals | 32 | 3 | 4 | 7 | 5 | 12 |
| 2012-13 | NHL | Washington Capitals | 35 | 12 | 14 | 26 | -3 | 20 |
| 2013-14 | NHL | Washington Capitals | 70 | 9 | 29 | 38 | -16 | 64 |
| 2014-15 | NHL | Washington Capitals | 72 | 10 | 35 | 45 | 15 | 34 |
| 2015-16 | NHL | Detroit Red Wings | 74 | 7 | 28 | 35 | -6 | 38 |
| 2016-17 | NHL | Detroit Red Wings | 72 | 14 | 22 | 36 | -20 | 40 |
| 2017-18 | NHL | Detroit Red Wings | 66 | 8 | 25 | 33 | -14 | 38 |
| 2018-19 | NHL | Detroit Red Wings | 43 | 5 | 21 | 26 | -1 | 28 |
| 2019-20 | NHL | Detroit Red Wings | 48 | 3 | 8 | 11 | -32 | 32 |
| 2019-20 | NHL | Edmonton Oilers | 2 | 0 | 0 | 0 | -2 | 0 |
| NHL Total | 880 | 150 | 351 | 501 | -17 | 592 | ||
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2007-08 | NHL | Washington Capitals | 7 | 3 | 4 | 7 | -2 | 15 |
| 2008-09 | NHL | Washington Capitals | 14 | 1 | 8 | 9 | -5 | 12 |
| 2009-10 | NHL | Washington Capitals | 7 | 0 | 3 | 3 | 1 | 12 |
| 2010-11 | NHL | Washington Capitals | 8 | 1 | 5 | 6 | 0 | 8 |
| 2011-12 | NHL | Washington Capitals | 14 | 2 | 2 | 4 | 5 | 10 |
| 2012-13 | NHL | Washington Capitals | 7 | 2 | 2 | 4 | 0 | 4 |
| 2014-15 | NHL | Washington Capitals | 14 | 0 | 2 | 2 | -1 | 14 |
| 2015-16 | NHL | Detroit Red Wings | 5 | 1 | 1 | 2 | -1 | 10 |
| NHL Total | 76 | 10 | 27 | 37 | -3 | 85 | ||