SANTA CLARA, CA - SEPTEMBER 16: Richard Sherman #25 of the San Francisco 49ers stands on the field during warm-ups before their game against the Detroit Lions at Levi's Stadium on September 16, 2018 in Santa Clara, California. (Photo by Ezra Shaw/Getty Images)
lessSANTA CLARA, CA - SEPTEMBER 16: Richard Sherman #25 of the San Francisco 49ers stands on the field during warm-ups before their game against the Detroit Lions at Levi's Stadium on September 16, 2018 in Santa
... more Photo: Ezra Shaw / Getty ImagesNiners cornerback Richard Sherman will miss a "few weeks" with a calf strain that forced him to exit in the second quarter of a 38-27 loss at Kansas City on Sunday, the NFL Network reported.