Three possible candidates the Pittsburgh Penguins could sign to PTO's for added depth

With the Penguins boasting a strong top-four defensive lineup, including Erik Karlsson and Kris Letang, they still lack depth in case of injuries or slumps. Head coach Mike Sullivan and his staff are likely keeping a close eye on several free agents who could earn their place during training camp. Here are three unrestricted free agents Pittsburgh may consider adding to fill crucial roster spots.

Pittsburgh's top defensemen struggled to perform in 2023-24, and with Karlsson, Letang, and Graves aging, plus Pettersson nearing free agency and looking for a standout year, reinforcements are needed. Grzelcyk and Aho likely won't play 70-80 games, leaving an opening for someone like Gustav Lindstrom to step in regularly.

If Lindstrom can maintain his usual ice time of 15 minutes per game, he could be a valuable addition for the Penguins' third pairing, stepping up if needed due to injuries or rotation.

Kailer Yamamoto, a former first-round draft pick, has established himself as a reliable depth forward in the NHL. Although his offensive production was modest last season with Seattle, tallying 16 points in 59 games, he has demonstrated moments of brilliance while playing alongside Connor McDavid in Edmonton.