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When Washington opens up the 2011 preseason tonight against the Pittsburgh Steelers, we’ll get the first glimpse at a roster that has undergone plenty of changes since the Redskins last took the field.

Here are five of the biggest story lines to watch tonight. Feel free to share your thoughts on the game in the comment section below, and for in-game commentary and updates from Landover, check out @MikeJonesWaPo, @RickMaese, @MikeWiseguy and @JReidPost on Twitter.

Kickoff: 7:30 p.m., FedEx Field | TV: NBC, Comcast SportsNet