PITTSBURGH - For a minute or so at Thursday's practice, it looked like the Senators were going to have an injured first line left winger on their hands.

In his usual at the edge of the crease on a power play drill, Colin Greening was hit by a hard Jason Spezza shot. He skated away in obvious pain, flexing his left hand over and over. After a drink of water at the bench and a chat with Spezza, Greening returned to the front of the net for more.

Later, he showed where the puck had hit him on the left wrist, and joked that Spezza "needs to lay off the weights."

Unless there's some sort of unexpected flare up of his arm, Greening will be in the lineup Friday when the Senators are in Pittsburgh to take on the Penguins.

"It was just like, tingly all over," said the big rookie. "I was grabbing at it and it was painful ...I couldn't really feel some areas. It was like, come on, get the feeling back."

The Senators can ill-afford to be without Greening, who has six goals, including two on the power play. Heading into Pittsburgh, they have converted just two of their last 30 opportunities with the man advantage.

The power play received plenty of focus at practice this week, as the Senators have four full days between games.

"We did a lot of work on it last couple of days," said coach Paul MacLean, who stressed entries into the offensive zone.

Putting some goals on the board, of course, will be key against a Penguins squad bolstered by the return of Sidney Crosby.

As the first place team in the Eastern Conference, the Penguins were already going to be a handful.

Craig Anderson will be on the hotseat as Ottawa's starting goalie, but as MacLean said: "It's going to be a test for our whole team."