Watson scored two goals in Tuesday's 6-3 win over the Canadians.
He opened and closed the scoring for the Senators, getting them on the board late in the first period to tie the game at 1-1 before flipping home an empty-netter late in the third. Watson only has six goals in 54 games on the season as he toils away on the fourth line, but three of them have come in the last three games.