The 49ers won’t have enthusiasts at their year opener versus the Cardinals at Levi’s Stadium, and it’s not very clear if NFL teams will have pumped-in group sound at games this period.

Specified that, head mentor Kyle Shanahan, who normally has songs blaring through exercise, went with the seem of silence for Friday’s session. It was the initial coaching-camp follow held at Levi’s, and Shanahan wished to simulate probable recreation problems.

“It’s awkward to perform football in a silent area,” Shanahan stated. “… Even in significant faculty, when you don’t have many people in the stands, there is still noise.”

Reporters observing Friday’s practice from the stands could listen to high-decibel defensive line mentor Kris Kocurek exhorting his gamers.

And Shanahan could be heard loud and apparent soon after a sequence in which the 1st-workforce offense dedicated a pre-snap penalty and allowed a sack ahead of middle Daniel Brunskill’s shotgun snap sailed by quarterback Jimmy Garoppolo and rolled into the conclude zone.

Shanahan’s reaction? Reporters aren’t permitted to quotation what coaches and players say for the duration of practice, but let us say Shanahan wasn’t amused as he produced it obvious he preferred the initially-crew offense to exit the subject.

Shanahan was questioned if he was anxious about other coaching staffs staying in a position to hear what he’s telling gamers all through games.

“Probably more involved about stating some thing — the improper style of word — and it staying on Television far more than the coaches listening to us on the other aspect,” Shanahan claimed.

Personal injury report: Restricted stop George Kittle did not follow due to the fact of a restricted hamstring, an issue that saved him out of the finish of Wednesday’s exercise. Shanahan claimed Kittle does not have a strained hamstring and suggested he was sidelined for precautionary reasons.

“The way George moves and the way he goes, he only knows a person way,” Shanahan said. “So when he’s limited, we’re going to safeguard him from himself and hold out until finally he’s not tight.”

Huge receiver J.J. Nelson, a 5-calendar year veteran who was signed Aug. 15, is predicted to be sidelined for about a month with a knee harm, ESPN claimed. Nelson was likely a extended shot to make the 53-man roster, but he was a prospect to serve as a single of 6 veterans with limitless expertise on the apply squad.