SANTA CLARA — This time, Richard Sherman lasted two-and-a-half games before he broke down.
Last year, he broke down in November, when he tore his right Achilles. He never had missed a game in his career before that injury.
This past Sunday, Sherman strained his left calf during the first half of the 49ers’ 38-27 loss to the Kansas City Chiefs. The 49ers had to carry him to the locker room. He couldn’t make it through the third game of the season. And he won’t play this Sunday against the Los Angeles Chargers. The 49ers don’t know exactly when he will return
“Not ready to push the panic button,” defensive coordinator Robert Saleh said Thursday.