| Position | R |
| Birth city | Pori, undefined, FIN |
| Birth date | 1993-05-31 (33) |
| Height | 6'3'' |
| weight (lb) | 215 |
| Drafted | pick 16 round 1 by BUF in 2011 |
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2014-15 | NHL | Buffalo Sabres | 1 | 0 | 0 | 0 | 0 | 0 |
| 2015-16 | NHL | Winnipeg Jets | 43 | 4 | 6 | 10 | 2 | 12 |
| 2016-17 | NHL | Winnipeg Jets | 57 | 10 | 9 | 19 | -8 | 20 |
| 2017-18 | NHL | Winnipeg Jets | 79 | 12 | 17 | 29 | 3 | 22 |
| 2018-19 | NHL | Montréal Canadiens | 57 | 13 | 10 | 23 | 0 | 14 |
| 2019-20 | NHL | Montréal Canadiens | 58 | 16 | 14 | 30 | 2 | 28 |
| 2020-21 | NHL | Montréal Canadiens | 41 | 7 | 7 | 14 | 10 | 10 |
| 2021-22 | NHL | Montréal Canadiens | 60 | 6 | 8 | 14 | -15 | 14 |
| 2022-23 | NHL | Montréal Canadiens | 43 | 7 | 7 | 14 | -7 | 22 |
| 2023-24 | NHL | Montréal Canadiens | 66 | 17 | 8 | 25 | 4 | 34 |
| 2024-25 | NHL | Montréal Canadiens | 81 | 11 | 18 | 29 | -2 | 16 |
| 2025-26 | NHL | Los Angeles Kings | 67 | 13 | 12 | 25 | 1 | 30 |
| 2026-27 | NHL | Los Angeles Kings | 4 | 1 | 0 | 1 | 0 | 0 |
| NHL Total | 657 | 117 | 116 | 233 | -10 | 222 | ||
season | L | T. | GP | G | A | PTS | +/- | pim |
|---|---|---|---|---|---|---|---|---|
| 2017-18 | NHL | Winnipeg Jets | 13 | 2 | 0 | 2 | -1 | 2 |
| 2019-20 | NHL | Montréal Canadiens | 10 | 3 | 2 | 5 | 5 | 10 |
| 2020-21 | NHL | Montréal Canadiens | 21 | 5 | 3 | 8 | -1 | 10 |
| 2024-25 | NHL | Montréal Canadiens | 5 | 0 | 2 | 2 | 2 | 2 |
| 2025-26 | NHL | Los Angeles Kings | 3 | 0 | 0 | 0 | -1 | 6 |
| NHL Total | 52 | 10 | 7 | 17 | 4 | 30 | ||