
| 2004-05 | Den-Jr. | Rodovre Jr. | 28 | 21 | 26 | 47 | - | - | - | 20 |
| 2004-05 | Denmark | Rodovre | 1 | 3 | 1 | 4 | - | - | - | 0 |
| 2005-06 | Swe-U18 | Frolunda U18 | 8 | 2 | 4 | 6 | - | - | - | 10 |
| 2005-06 | Swe-Jr. | Frolunda Jr. | 36 | 7 | 7 | 14 | - | - | - | 6 |
| 2006-07 | Swe-U18 | Frolunda U18 | 3 | 1 | 4 | 5 | - | - | - | 6 |
| 2006-07 | Swe-Jr. | Frolunda Jr. | 39 | 18 | 37 | 55 | - | - | - | 58 |
| 2007-08 | Sweden-2 | Boras | 19 | 2 | 6 | 8 | - | - | - | 8 |
| 2007-08 | Swe-Jr. | Frolunda Jr. | 9 | 4 | 4 | 8 | - | - | - | 10 |
| 2007-08 | Sweden | Frolunda | 14 | 0 | 2 | 2 | - | - | - | 4 |
| 2008-09 | Sweden | Frolunda | 48 | 12 | 17 | 29 | - | - | - | 28 |
| 2009-10 | NHL | St. Louis Blues | 7 | 2 | 0 | 2 | 2 | 8 | 25.0% | 4 |
| 2009-10 | AHL | Peoria | 70 | 18 | 39 | 57 | -1 | - | - | 84 |
| 2010-11 | NHL | Montréal Canadiens | 77 | 7 | 10 | 17 | -4 | 79 | 8.9% | 48 |
| 2011-12 | NHL | Montréal Canadiens | 79 | 16 | 12 | 28 | -5 | 129 | 12.4% | 66 |
| 2012-13 | NHL | Montréal Canadiens | 46 | 8 | 22 | 30 | 8 | 84 | 9.5% | 45 |
| 2012-13 | Finland | JYP | 15 | 5 | 10 | 15 | - | - | - | 18 |
| 2013-14 | NHL | Montréal Canadiens | 77 | 12 | 14 | 26 | -15 | 137 | 8.8% | 68 |
| 2014-15 | NHL | Montréal Canadiens | 77 | 15 | 12 | 27 | -6 | 150 | 10.0% | 42 |
| 2015-16 | NHL | Montréal Canadiens | 79 | 13 | 13 | 26 | -13 | 149 | 8.7% | 28 |
| 2016-17 | NHL | Washington Capitals | 81 | 12 | 13 | 25 | 15 | 115 | 10.4% | 36 |
| 2017-18 | NHL | Washington Capitals | 81 | 18 | 20 | 38 | -6 | 161 | 11.2% | 38 |
| 2018-19 | NHL | Washington Capitals | 81 | 13 | 23 | 36 | -1 | 163 | 8.0% | 37 |
| 2019-20 | NHL | Washington Capitals | 69 | 16 | 23 | 39 | 3 | 151 | 10.6% | 48 |
| 2020-21 | NHL | Washington Capitals | 44 | 8 | 15 | 23 | -1 | 69 | 11.6% | 21 |
| 2021-22 | NHL | Washington Capitals | 72 | 13 | 18 | 31 | -4 | 116 | 11.2% | 40 |
| 2022-23 | NHL | Washington Capitals | 60 | 7 | 9 | 16 | -1 | 101 | 6.9% | 36 |
| 2022-23 | NHL | Colorado Avalanche | 24 | 3 | 4 | 7 | 4 | 39 | 7.7% | 10 |
| 2023-24 | NHL | Pittsburgh Penguins | 82 | 15 | 16 | 31 | -1 | 154 | 9.7% | 32 |
| 2024-25 | NHL | Pittsburgh Penguins | 17 | 4 | 3 | 7 | -4 | 27 | 14.8% | 10 |
| 2024-25 | NHL | Washington Capitals | 63 | 6 | 9 | 15 | -1 | 77 | 7.8% | 26 |
| 2025-26 | NHL | Ottawa Senators | 29 | 2 | 4 | 6 | -7 | 25 | 8.0% | 6 |
| NHL Totals | – | 1145 | 190 | 240 | 430 | -37 | 1934 | 9.8% | 641 | |
| AHL Totals | – | 70 | 18 | 39 | 57 | -1 | - | - | 84 | |
| 2005-06 | Swe-U18 | Frolunda U18 | 2 | 0 | 0 | 0 | 0 | 0 | 0.0% | 0 |
| 2006-07 | Swe-U18 | Frolunda U18 | 6 | 3 | 2 | 5 | 0 | - | - | 8 |
| 2006-07 | Swe-Jr. | Frolunda Jr. | 8 | 4 | 1 | 5 | 0 | - | - | 24 |
| 2007-08 | Swe-Jr. | Frolunda Jr. | 7 | 5 | 6 | 11 | 0 | 0 | 0.0% | 14 |
| 2007-08 | Sweden | Frolunda | 7 | 0 | 1 | 1 | - | - | - | 2 |
| 2008-09 | Sweden | Frolunda | 10 | 3 | 1 | 4 | - | - | - | 12 |
| 2010-11 | NHL | Montréal Canadiens | 7 | 0 | 2 | 2 | 1 | 11 | 0.0% | 4 |
| 2012-13 | NHL | Montréal Canadiens | 1 | 0 | 0 | 0 | 0 | 0 | 0.0% | 0 |
| 2013-14 | NHL | Montréal Canadiens | 17 | 5 | 8 | 13 | 6 | 23 | 21.7% | 18 |
| 2014-15 | NHL | Montréal Canadiens | 12 | 1 | 2 | 3 | 0 | 26 | 3.9% | 4 |
| 2016-17 | NHL | Washington Capitals | 13 | 0 | 5 | 5 | -2 | 22 | 0.0% | 10 |
| 2017-18 | NHL | Washington Capitals | 24 | 7 | 11 | 18 | 6 | 52 | 13.5% | 18 |
| 2018-19 | NHL | Washington Capitals | 7 | 1 | 2 | 3 | -1 | 11 | 9.1% | 2 |
| 2019-20 | NHL | Washington Capitals | 5 | 0 | 1 | 1 | -5 | 10 | 0.0% | 2 |
| 2020-21 | NHL | Washington Capitals | 4 | 0 | 1 | 1 | 0 | 8 | 0.0% | 0 |
| 2021-22 | NHL | Washington Capitals | 6 | 1 | 2 | 3 | -4 | 15 | 6.7% | 0 |
| 2022-23 | NHL | Colorado Avalanche | 7 | 0 | 0 | 0 | -1 | 9 | 0.0% | 0 |
| 2024-25 | NHL | Washington Capitals | 9 | 0 | 1 | 1 | -1 | 3 | 0.0% | 2 |
| NHL Totals | – | 112 | 15 | 35 | 50 | -1 | 190 | 7.9% | 60 | |
| Season | Opponent | Date | G | A | P | +/- | PIM | PPG | SHG | S | Shifts | TOI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular | @ COL | Jan 8 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 1 | 19 | 11:10 |
| Regular | @ CBJ | Dec 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 7:21 |
| Regular | vs NJD | Dec 9 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 11 | 7:13 |
| Regular | @ MTL | Dec 2 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 16 | 10:49 |
| Regular | @ DAL | Nov 30 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 16 | 12:26 |
| Year | Award |
|---|---|
| 2017-18 | Stanley Cup |