OAKLAND -- What started as a potentially uplifting day ended when the remnants of a home crowd of 53,549 vented its frustration upon the Raiders on Sunday at O.co Coliseum.

"We let 'em down," safety Charles Woodson said after a 24-14 loss to Washington "You heard the boos. For any team in the league, to hear your home fans boo, that's hard."

Terrelle Pryor sat out the game to further recover from a concussion, and two other crowd favorites -- running back Darren McFadden and fullback Marcel Reece -- left in the second-quarter with injuries and did not return.

Most of the boo birds were targeting quarterback Matt Flynn, who turned the ball over twice and failed to move the ball after the Raiders jumped to a 14-0 lead in the first quarter.

Oakland Raiders’ starting quarterback Matt Flynn (15) throws against the Washington Redskins in the first quarter at the O.co Coliseum, Calif. on
Oakland Raiders' starting quarterback Matt Flynn (15) throws against the Washington Redskins in the first quarter at the O.co Coliseum, Calif. on Sunday, Sept. 29, 2013. (Nhat V. Meyer)

It started during pregame warm-ups, when Flynn was announced as the starter after coach Dennis Allen determined Saturday night that Pryor needed at least another week before playing.

But the house was rocking a short time later when Rashad Jennings blocked a Sav Rocca punt and Jeremy Stewart pounced on it in the end zone with 10:40 to play in the first quarter.

It got even louder when Flynn found rookie tight end Mychal Rivera for an 18-yard touchdown with 3:06 left in the quarter.

Flush with momentum, the Raiders (1-3) gave it all back and then some, with a gift interception from Flynn landing in the hands of Don Amerson for a 45-yard touchdown return and getting Washington within 14-10 with 10:59 left in the second quarter.

With the Raiders unable to move the ball and continually giving Washington chances, the visitors got second-half touchdowns on a 5-yard pass from Robert Griffin III to Pierre Garcon and a 14-yard run by Roy Helu, sending home both the fans and the home team disappointed.

"That one stung," Allen said. "The way we were able to start the game, block a punt, get it to 14-0 and have all the momentum ... then we let 'em back in the game."

And while the usual protocol finds an NFL coach finding ways to spread the blame equally after a loss, Allen conceded, "I thought our defense and special teams, they held their own. They did some good things."

Flynn was 21 of 32 for 227 yards with one touchdown, the interception for a touchdown and two fumbles, one that he lost and one that he recovered on a fourth-and-1 play to give Washington the ball on downs.

Washington (1-3) had seven sacks, in part because Flynn was reluctant to let the ball go and also because defenders came hard and fast knowing they weren't concerned with Pryor getting outside for big yardage.

The touchdown by Amerson, which Woodson said "let the air out of the bubble" while the Raiders were leading 14-3, was telegraphed from the start.

"When you lock down in that split, it's pretty obvious you know where he's going to run," Amerson said. "I just wanted to make sure I was close enough to the receiver and make a play."

In 12 possessions after the Raiders led 14-0, the closest they got to scoring was a missed 52-yard field goal by Sebastian Janikowski in the third quarter.

"We just couldn't get anything else going," Allen said. "Obviously, losing McFadden and Marcel hurt, but we've got to find a way to get some more offense going."

After an encouraging three games in terms of moving the ball with Pryor at quarterback, the Raiders were under 300 yards of total offense for the first time this season against a team that came in giving up 488.0 yards per game -- the most in the NFL.

The Raiders were 5 for 17 on third-down conversions, and two of those came on Flynn passes of 6 yards to Brice Butler on third-and-4 and 12 yards to Jennings on third-and-8 in their 10-play, 81-yard touchdown drive.

"We started out pretty well," Flynn said. "They made some adjustments on defense; after that we weren't converting third downs, and that was obviously the big issue."

Woodson had no issue with the fans booing and said, "If we continue to do what we did at points in today's game, we're going to hear those boos. It ain't going to stop."

Sunday's game

San Diego (2-2) at Raiders (1-3), 1:25 p.m. CBS

INSIDE

Poole: Raiders can't depend on McFadden to stay healthy and on the field. PAGE 4
Notebook: Allen defends decision to keep Pryor out. PAGE 4

Online extras

Versatile Rashad Jennings impressive in defeat.
www.mercurynews.com/Raiders