

Robert Griffin III came on Sunday in relief, but is slated to start this Saturday. (Julio Cortez/Associated Press)

Update, 3:46 p.m.: With Colt McCoy’s neck re-injured, Jay Gruden plans to start Robert Griffin III at quarterback Saturday against the Philadelphia Eagles.

“That’s the plan right now,” the coach said when asked.

Griffin took over for McCoy after he left the game with a recurring neck injury on the first possession of the game. Griffin completed 18 of 27 passes for 236 yards, a touchdown and was sacked seven times in the Redskins’ 24-13 loss to the Giants.

It was Griffin’s most productive game since Nov. 7, 2013. Griffin did well in the first half, but struggled in the second half, and Washington’s offense did as well.

However, McCoy isn’t expected to be available for this week’s game because of the neck injury, and so, Gruden will go with Griffin.

“Robert competed in the first half – did some good things,” Gruden said. “Obviously we didn’t do so well in the second half as a group offensively but I was pleased with the way Robert competed and hopefully we can build on that going forward into next week.”

Asked what stood out about Griffin’s play, Gruden said, “I thought he played with good energy. I thought he took the ball down and ran it when he had to a few times, and was pretty efficient in the passing game. For whatever reason, in the second half we couldn’t get it going. We got in some third downs and weren’t able to convert again, and that was unfortunate. He’s just got to continue to go through the same progressions and see the concepts, but something to build off of from last week, hopefully.”

Kirk Cousins presumably would be the backup, but Gruden indicated that he is not considering the former Michigan State product for the starter this week.

“Kirk’s a heck of a guy and he’s worked extremely hard and he’s dying for another chance,” Gruden said of Cousins, who went 0-5 in his starts this season and lost his job primarily because of his nine interceptions. “Whether he gets it or not this year is to be determined, but I know he’ll get another chance another time somewhere soon. I love the way he works, love the way he prepares, and think he has a bright future.”

Posted, 3:15 p.m.: Jay Gruden met with reporters at 3 p.m. and at the very top, he said “the plan” is to start Robert Griffin III on Saturday against the Eagles.

Here are some quick Twitter outtakes from Mike Jones and Liz Clarke:

Gruden plans to start RG3 vs Philly on Sat — Liz Clarke (@lizclarketweet) December 15, 2014

#Skinscoach Gruden confirms McCoy re injured sprained neck; must start recovery protocol over again — Liz Clarke (@lizclarketweet) December 15, 2014

Gruden doesn't expect McCoy to dress for this game. — Mike Jones (@ByMikeJones) December 15, 2014

Gruden plans to start griffin sat. of Griffin: "he competed in the first half ... Hopefully he can build on that" — Mike Jones (@ByMikeJones) December 15, 2014

Gruden will try to build the offense around Griffin's strengths. Said it's important for run game to be clicking to do things to help. — Mike Jones (@ByMikeJones) December 15, 2014

Gruden: "he's got every chance this week against the Philadelphia eagles to take this position and run with it" — Mike Jones (@ByMikeJones) December 15, 2014

Gruden laughed when asked of Griffin has reached his ceiling. "No. He's 24 years old" said you can't project his future off of current state — Mike Jones (@ByMikeJones) December 15, 2014

E-mail a Redskins question to mike.jones@washpost.com, with the subject “Mailbag question,” and it might be answered Tuesday in the Mailbag.

More from The Post:

Five observations from Redskins’ loss to Giants

Steinberg: Gruden gave up at the end, and it was weird and sad

Ten Redskins QBs worse than Griffin | Bog: Career days vs. Redskins

First and 10: Cowboys’ win, Packers’ loss sets up mad scramble in NFC

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