The Redskins and Baltimore Ravens have not played in the regular season since 2004.
And then there's DeAngelo Hall. As a member of the Oakland Raiders, he played the Ravens at M&T Bank Stadium just five weeks ago, on Oct. 26.
That day, the Ravens defeated the Raiders 29-10. Hall recorded four tackles in the game.
Hall signed with the Redskins on Nov. 9 after the Raiders released him in an apparent salary cap move.
In Hall's second matchup against Baltimore, he has an idea what to expect from the Ravens' offense.
"When I'm watching film on [wide receivers] Derrick Mason and Mark Clayton and [quarterback] Joe Flacco, I kind of know what their offense is trying to do," Hall said. "I know how they actually run routes."
He added: "You can't get a feel for what their receivers are doing and his motions until you're out on the field with them. Having already played against them, you definitely have a little bit of understanding of how they move."
Hall and the Raiders yielded just 183 passing yards in the Oct. 26 game against the Ravens.
Seventy of those passing yards came on a touchdown pass from Flacco to wide receiver Demetrius Williams. Another 43 passing yards came on a trick play in which quarterbacks Troy Smith and Flacco connected on a big play.
Down the stretch, Hall is expected to be a key component in the Redskins' defense.
Greg Blache indicated his penchant for interceptions could help the defense produce more game-changing plays.
Hall has recorded two interceptions in three games with the club. Overall, he has five interceptions this season.
As a team, the Redskins have 11 interceptions.
"DeAngelo is a very polished player and he's a very competitive player," Blache said. "He is very smooth and fluid in his ability to do things. He has a sense for the football.
"We have become very comfortable with him and we feel like he is a premiere shutdown corner. You'll see more and more of DeAngelo as we go through these next few weeks.
"We're going to feature him. We're going to give him an opportunity to really try to lead us back there and see if we can come up with some turnovers."
Hall is in his fifth NFL season out of Virginia Tech.