"The chain said first down, and then when we came back, we think it's second-and-10, and they're yelling out it's fourth down," Griffin said. "No explanation. No measurement. Didn't stop the clock to allow the chains to move back. And we just had to go ahead and call the play."
Griffin did complete a 6-yard pass to Garcon on fourth-and-1, but safety Will Hill stripped the ball. The Giants then ran out the clock.
"I told him I wanted a measurement because I knew it was close," Shanahan said, not specifying which official he was referring to. "It was inches. And he said, 'No, it's a first down.' And he moved the chains. And then after I saw it was fourth down, I asked him, 'You already told me it was first down.' He didn't say anything. So that was quite disappointing."
Speaking to a pool reporter Sunday night, Triplette said: "We signaled third down on the field. The stakes were moved incorrectly. After that play, we said it was still third down. We had signaled third down prior to the play starting. The stakes just got moved incorrectly."
Triplette defended not stopping play, saying it would have given an "unfair advantage." But Blandino said Monday that was the wrong decision.
Giants defensive end Justin Tuck, who played every snap, said he was aware it was not a first down.
"I remember turning to the referee and saying, 'That's not a first down,' " Tuck said Monday. " Obviously, they're hurrying up, you don't really have time to argue it.
"I think at the end of the day, it was actually the right call. It might not have come across in the right manner, but I think it was the right call. And when the ball is getting snapped that fast, it's very tough for a referee to get all of these calls right."
AP Sports Writers Joseph White and Tom Canavan contributed to this report.
AP NFL website: www.pro32.ap.org