"Coach [Kyle Shanahan, the offensive coordinator] called that play thinking it was first down," quarterback Robert Griffin III said. "Then we come back and we think it's second-and-10 and they're yelling out it's fourth down. No explanation, no measurement. Didn't stop the clock to allow the chains to move back."
On fourth down, Garcon caught a short hitch that would have resulted in a first down, but safety Will Hill stripped him of the ball and recovered it for the Giants (5-7).
Griffin said Kyle Shanahan had called a play thinking it was second-and-10. After the Redskins (3-9) realized it was fourth down, Shanahan had to change the call.
"Anytime you have a sequence of plays, you're not going to call a quick hitch on fourth-and-inches," Mike Shanahan said. "So obviously it's going to affect our play call."
Griffin said it did not cause confusion in the huddle.
"We try to stay in the moment," Griffin said. "If the refs call it fourth down, we try to make sure we're treating that as a fourth-down play. This is it. We have to convert this to continue to go on. Tried to stay in the moment and then after the fact think about how everything transpired.
"We did a good job of that and got a good play. It just didn't turn on."
Information from ESPN.com Giants reporter Dan Graziano contributed to this report.