100 - Penguins penalty-kill percentage through four games (16-for-16). That unit will face a Capitals power-play tonight that has yet to score a five-on-four goal on the season and is 2-for-12 in the team's two games this season.
On the flip side, the Caps' penalty kill (6-for-8, 75%) will try to stop a Pens' power-play that has struck five times in 20 opportunities (25%).
Finally, at even strength, Washington has outscored opponents 7-6, while Pittsburgh has been outscored 9-5.
Here's hoping referees Greg Kimmerly and Dan O'Rourke let 'em play...