Karlsson (upper body) took the ice in a regular sweater with the main group Friday, Michelle Crechiolo of the Penguins' official site reports.

EDGE Analysis

Karlsson is unlikely to jump right back into action against the Jackets on Friday in the Penguins' preseason finale. Instead, the blueliner looks on track to be ready to suit up for Opening Night versus the Rangers. Still, it's good news for the Swede, who has thus far missed the entirety of training camp due to his upper-body issue. Once given the all-clear, Karlsson figures to eat a ton of minutes on Pittsburgh's blue line and should step into a spot on the No. 1 power-play unit -- though Kris Letang will likely also be in contention for that role.