Alex Goligoski is the third highest-scoring Penguin. ((Jeff Gross/Getty Images))

The hits keep coming for the Stanley Cup champs.

Penguins defenceman Alex Goligoski will miss two to three weeks with a lower-body problem, coach Dan Bylsma announced Monday, making it six Pittsburgh regulars who are out with injuries.

The Pittsburgh blue-line has been particularly hard-hit, with Sergei Gonchar (wrist), Kris Letang (shoulder) and Brooks Orpik (undisclosed) currently hurt. Forwards Max Talbot (shoulder) Tyler Kennedy (groin) and Chris Kunitz (undisclosed) are out as well.

Reigning NHL scoring king Evgeni Malkin missed seven games earlier this season with a shoulder strain.

Goligoski, 24, left late in Saturday's 6-5 win over Boston with an apparent injury to his left leg.

Goligoski's loss is troubling because, in Gonchar's absence, he's the team's top scoring defenceman and the point man on the power play. Goligoski ranks third on the team with 14 points in 20 games, and second in ice time with an average of about 23 minutes per contest.

Pittsburgh, which has just two healthy defenceman remaining from its pre-season top six, now has three blue-liners who began the season in the minors: Deryk Engelland, Ben Lovejoy and Nate Guenin.

With files from The Associated Press