"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. "Karlsson has missed all of training camp with an upper-body injury.

Pittsburgh Penguins coach Mike Sullivan artfully sidestepped a question about defenseman Erik Karlsson’s return last week. On Tuesday, he offered some confidence that Karlsson will be ready by the Penguin’s season opener against the New York Rangers on Oct.