COLUMBUS, OHIO - NOVEMBER 15: Zach Werenski #8 of the Columbus Blue Jackets shoots the puck on Tristan Jarry #35 of the ...

Trading Erik Karlsson might not be impossible, but the veteran defenseman ultimately has the final say as for whether he stays with the Penguins.

Tristan Jarry, back from a month of trying to get himself right, struggled almost as much as his defense in the Penguins' 6-2 ...