Adding that up shows how much of a luxury Pettersson has been for the Penguins. He can capably work with Karlsson or Kris Letang ... bad news on every front if Marcus Pettersson’s prognosis ...

Pittsburgh Penguins defenseman Kris ... Letang will be absent for a second consecutive game. Nate Clurman replaced him in the lineup on Sunday versus the Islanders. However, Marcus Pettersson ...