"The Penguins naturally aren’t giving away any injury specifics but it’s fair to surmise Karlsson endured some kind of a setback during the past week," Yohe wrote on Monday. "

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.

The postponement of Saturday’s preseason game against the Detroit Red Wings to Monday means the team’s second preseason game against the Red Wings on Tuesday concludes a back-to-back set of games. Three games in three days is not ideal for any team,

The Pittsburgh Penguins say they will be unable to make their preseason game against the Detroit Red Wings because of transportation issues.