The specific details on Sherman's injury are unclear, but Garafolo reported it's an apparent "leg issue." His IR designation means he'll miss a minimum of three weeks.
The 32-year-old remains one of the top cornerbacks in the game. The Niners veteran was excellent in his second season for San Francisco in 2019, registering 61 tackles, three interceptions, 11 passes defensed and a defensive touchdown.
Sam Monson of Pro Football Focus ranked him as the 13th best player in the NFL, and the top cornerback, in the 2019 season:
"The Super Bowl wasn't the best game of his season, but Richard Sherman was phenomenal overall this season, and he was back to his best in coverage after working his way back from an Achilles injury a couple of seasons back.