SEATTLE – Left tackle Joe Staley heard the whistle and did not move.

Seattle Seahawks pass-rusher Frank Clark did not hold back, and 49ers quarterback Brian Hoyer paid the price.

Staley was upset that referee Bill Vinovich did not call Clark for unnecessary roughness after he delivered a brutal blind-side hit on Hoyer after sprinting past the stationary Staley at the snap of the ball. The 49ers had already called a timeout with the play clock winding down before a third-and-6 play from the 49ers’ 42-yard line in the third quarter.

“I stopped,” Staley said. “I heard the whistle for like five seconds, so I didn’t even get out of my stance. Then, I was freaking out because they kept going and killed the quarterback.

“So I told them, ‘What the hell is that? That’s unnecessary roughness.’ He’s like, ‘Oh, man, you can drop an atomic bomb in here and you can’t hear whistles.’ I heard it. Four guys heard it. It’s your job to hear it. You (granted) us a timeout. So it was heard and it was called. Whatever.”

The 49ers made plenty of their own mistakes in the 12-9 loss to the Seattle Seahawks, including Marquise Goodwin’s critical dropped pass for what would’ve been for a first down near the Seattle 10-yard line in the fourth quarter.

On the next play, the 49ers thought Richard Sherman got away with defensive holding against Pierre Garçon – a play after which coach Kyle Shanahan was seen arguing with the official near the play. Hoyer took a big hit from defensive tackle Sheldon Richardson after delivering the pass on that play, too.

The 49ers were held without a touchdown for the first two games of the regular season – the first time that has occurred in franchise history.

“I have to play a whole lot better,” Hoyer said. “I’m disappointed with myself.

“We felt good about coming into the season, and the first two games haven’t gone the way we’d like them to, especially the way I’d like them to go as far as with my personal play. I’ve got to look at the tape and figure out what I can do a whole lot better, and with this quick turnaround, we have to be ready for the Rams on Thursday night.”