49ers cornerback Richard Sherman will miss a few weeks with a mild calf strain, Ian Rapoport of NFL.com tweets. It’s not ideal, but after a weekend of serious injuries in the NFL, it’s certainly not the worst news that the Niners could have received. 
Sherman, 30, joined the Niners on a three-year, $21.15MM deal this offseason. The veteran can earn another $18MM by way of per-game roster bonuses, playing-time incentives, and other sweeteners, but his injury will hinder his earning potential in 2018.
Sherman has yet to record an interception for his new club, but he has been one of the ten best corners in the NFL thus far, according to Pro Football Focus. Before his injury on Sunday, Sherman looked sharp as he made some big plays, including a touchdown-saving pass breakup while guarding Chiefs speedster Tyreek Hill.
Without Sherman, it’s likely that Ahkello Witherspoon and Jimmie Ward will be used as the club’s starting outside cornerbacks with K’Waun Williams remaining in the slot.
Our secondary will keep getting destroyed and this makes it even worse. People saying Sherman is washed are dumb. But the season is already over at this point. No pass rush either
He is washed but him at that stage will still help the team.