Pittsburgh Penguins’ defenseman Erik Karlsson remained off the ice on Monday due to an undisclosed injury that has prevented him from participating in any of the team’s practices during its ongoing training camp.

The Pittsburgh Penguins have a rough week ahead. After their sunny victory over the Ottawa Senators Sunday, they’ll play four games in the next five days, but the Penguins’ injury list might be a little longer today.

Questions have emerged regarding the status of top defenseman Erik Karlsson, who has been labeled as day-to-day with an upper-body injury since the onset of training camp. In the earlygoing, he was skating on his own before camp ensued, but over the last three practice days, he did not take the ice beforehand.

Pittsburgh Penguins star defenseman Erik Karlsson, the franchise's biggest offseason acquisition from a year ago, has yet to take the ice during training camp due to an upper-body injury with no positive updates in sight.

If you enjoy preseason hockey, there will never be a better week. The Pittsburgh Penguins have five games in six days, beginning with the Sunday game in Ottawa. Coaches may keep the Penguins’ oversized roster longer than anyone expected,