Davis, who entered the season as the starting tight-end, is battling a high-ankle sprain that has limited him in practice and caused him to sit-out last Sunday's loss to the Detroit Lions.
Reed, a rookie third-round pick out of Florida, played in place of Davis and has actually been Washington's most productive player at that position but is now battling a thigh bruise that has kept him out of practice all week.
"You always have to be ready for people going down," said head coach Mike Shanahan during a press conference following Thursday's practice. "Fred did get some practice in, which was good, and Jordan still has a chance. So we'll kind of wait for game-day and keep our fingers crossed that we have as many people healthy as we possibly can."
Tight-end is actually one of the deeper and more talented positions on Washington's roster with Logan Paulsen and Niles Paul also able and ready to contribute, but not quite at the level of Davis and Reed.
When Davis went down with an injury last year, Paulsen and Paul replaced him during Washington's late-season playoff run.
The problem is that Paul is not a very good blocker and Paulsen is not the athletic pass-catcher that the other tight-end's are, and with team's defending the read-option better than they did last season, Washington could use a do-it-all tight end on the field at all times so not to tip their hand before the snap.
The pass-catching tight end is especially important because it's an extra target to take attention away from Washington's top receiver Pierre Garcon.
Outside of him, Washington's receivers have struggled to threaten defenses on a consistent basis and Joshua Morgan and Leonard Hankerson have failed to separate themselves as clear number two receivers.
"We rotated them a lot in preseason, throughout training camp hoping one would [separate himself]," said offensive coordinator Kyle Shanahan about Morgan and Hankerson. "It's a good thing when one show's that he's a lot further along than the other and we gave them that opportunity. They both had their moments and they both had their moments where they'd be up and down. Neither one really took and ran with it, so it's really stayed the same. We look at them pretty much equal until one separates them self."
The Oakland Raiders are just 1-2 this season but can't be easily dismissed as an automatic victory for Washington, especially with questions at receiver and tight-end.
The Raiders are ranked just sixteenth is pass defense but that's still higher than Washington's previous three opponents, and that comes even after a week in which the great Peyton Manning put up gaudy numbers against them otherwise they would be ranked higher.
Same could be said for every quarterback in the league but Robert Griffin III isn't Manning and he certainly doesn't have Manning's weapons.