The wideout missed last week's loss to the Rams with a foot injury, and was a limited participant in practice this week.
Before leaving Washington's Week 1 win, Garcon racked up four receptions for 109 yards and a touchdown, including an 88-yard touchdown reception.
Quarterback Robert Griffin III will miss Garcon's presence. Griffin passed for 320 yards in Week 1, and 206 in Week 2.
The Redskins are currently 1-1, and finished last season at 5-11.
For more on the Redskins, check out Redskins blog Hogs Haven.