Karlsson, who leads the team with 11 points in 10 postseason games to date, has already set club records for assists (10) and points in a playoff year by a defenseman.
Three of those assists were earned in Saturday's Game 5 overtime win over the New York Rangers.
Granted, it's not a high bar to clear, but impressive nonetheless, especially seeing as he played the first round with a pair of hairline fractures in his foot and that he made an early exit from Game 4 against the Rangers.
Here's how Karlsson stacks up to Ottawa defensemen of playoff years past.
Karlsson could have as many as two more games against the Rangers to add to those totals, and possibly also another round, provided the Senators can make good on a 3-2 series lead.