Art critique

49ers’ Rosen responds to Shanahan’s criticism; Sherfield stays hot

Quarterback Josh Rosen likely entered Saturday night behind Nate Sudfeld for the 49ers’ third-place finish due to his spotty performance in the first 13 practices of training camp.

And he’s unlikely to close the gap with his performance in the preseason opener, a 19-16 loss to the Chiefs. Rosen, the No. 10 pick in 2018 who is on his fourth NFL team, completed 10 of 15 passes for 93 yards and threw an ungainly interception in the third quarter. Third-and-8 on the Chiefs’ 19-yard line, Rosen targeted wide receiver Travis Benjamin, who was open in the middle near the sticks on first down, but Rosen’s airborne throw was easily intercepted by safety Amari watts.

Rosen, who had a 55.7 passer rating, took a sack on the penultimate play of the game when the 49ers were out of timeouts. After kicking the ball to stop the clock with eight seconds left, the game ended due to an illegal shift penalty. Rosen broke his jugular in frustration.

“He had some good shots,” head coach Kyle Shanahan said. “…There were a few things he left there. I thought it was decent for the first performance.

Rosen, who said he “didn’t feel good” about his exit, was asked about Shanahan’s criticism last week. Shanahan said Rosen “stepped back a few steps” during training camp.

“I don’t really get a lot of reps in practice, so just riding the emotional rollercoaster when one or two of your three throws in live team reps aren’t very good,” said Rosen said. “So you definitely have to work mentally to keep some sort of calm head…

“You just can’t do something to try to show or this, that or anything. Just say disciplined. If your four pitches for the day are going to be two in (running backs) and two in the flats or something, then that’s what it should be.

Sudfeld, who didn’t play Saturday, will likely play much of the second half against the Chargers on Aug. 22.

Sherfield hits: Largely lost on rookie quarterback Trey Lance’s first NFL touchdown, an 80-yard upfield heave? Wide receiver Trent Sherfield, who had a great training camp, was the wide receiver.

Sherfield, 25, who had just 28 receptions in his first three seasons with the Cardinals, is an undrafted free agent whose special teams ability was the main reason the 49ers signed him in March. . He’s now pushing to serve as the No. 3 wide receiver behind Deebo Samuel and Brandon Aiyuk.

“There wasn’t a ton of tape on it,” Shanahan said, referring to Sherfield’s lack of wide receiver snaps in Arizona. “We liked how he was wired, and how he could run and how physically he played on special teams. But bringing it here in OTAs, we saw the capacity of the receiver. He did it in training camp. And he showed it there today too.

LB added: The 49ers signed linebacker Mychal Kendricks, 30, a nine-year Cal veteran who made 91 starts during a career spent in Philadelphia (2012-2017), Seattle (2018-2019) and Washington (2020) .

The 49ers linebacker corps has been reduced with Azeez Al-Shaair (knee) and Demetrius Flannigan-Fowles (concussion) sidelined.

“He’s done a hell of a job in Seattle the last few years,” Shanahan said. “We got bumped into the linebacker and he was there. We’re going to bring him in and have some competition and hopefully add some depth.

In July, Kendricks was sentenced to one day in jail, three years probation and 300 hours of community service after pleading guilty to insider trading. Kendricks was indicted in 2018, but his sentencing date has been repeatedly pushed back.

Night off: Tight end George Kittle, left tackle Trent Williams, linebacker Fred Warner and defensive end Nick Bosa were among a group of 22 players who the 49ers announced would not play until kickoff. .

The others were defensive linemen Arik Armstead, Dee Ford, Samson Ebukam, DJ Jones and Javon Kinlaw, defensive backs Jason Verrett, K’Waun Williams, Emmanuel Moseley, Jimmie Ward and Ha Ha Clinton-Dix, receivers Mohamed Sanu and Jalen Hurd, running backs Raheem Mostert and Elijah Mitchell, fullback Kyle Juszczyk, tight end MyCole Pruitt and Al-Shaair.

Shanahan said some starters will also be absent when the 49ers visit the Chargers, but most will play in the preseason finale against the Raiders on Aug. 29.

Injury Report: Mitchell, a sixth-round rookie pick, did not play due to a kidnapper strain and is expected to miss a few weeks, Shanahan said.

Rookie goaltender Aaron Banks, a second-round pick, left the game with a shoulder injury. Shanahan said Banks would be sidelined for about a week.

Eric Branch covers the 49ers for The San Francisco Chronicle. Email: [email protected]: @Eric_Branch