Here's a look at a key matchup heading into Green Bay's Week Five game in Washington against the Redskins.

Packers' back seven vs. Redskins TE Chris Cooley

Green Bay's pass defense, which has had its share of problems in the early going this season, will be facing a tough customer in Cooley, who has a team-leading two touchdowns among the Redskins' receivers, averages an impressive 14.6 yards per catch (16 catches for 234 yards) and lines up everywhere on the field.

The onus on the Packers' defense in terms of handling Cooley figures to fall mostly on two players who have been pressed into action due to injuries to starters — Charlie Peprah, who is expected to replace Morgan Burnett (out of the year with a torn ACL suffered in Week Four) in the short term at strong safety until Atari Bigby is ready to come off the physically-unable-to-perform List, and Desmond Bishop, who will be replacing Nick Barnett (wrist) this week and probably longer at middle linebacker. Cooley is especially dangerous over the middle.

With Peprah not quite 100 percent recovered from a calf injury, Jarrett Bush, who is normally a backup corner, could help share the load at strong safety.

It's also quite possible that LCB Charles Woodson, who normally takes on the opposition's most productive receiver, could become involved with defending Cooley, although Woodson also figures to have his hands full with speedy Redskins WR Santana Moss.