23 Ahkello Witherspoon CB

Witherspoon (knee) was placed on injured reserve Monday, Matt Maiocco of NBC Sports Bay Area reports.

The move comes as no surprise as Witherspoon was diagnosed with a PCL sprain in his right knee earlier Monday. The 2017 third-round pick shouldn't have an extensive recovery timetable, but his 2018 season will come to an end two games early. Tarvarius Moore should get the look at starting cornerback opposite Richard Sherman for the final weeks of the season.

Witherspoon (knee) suffered a PCL sprain in Sunday's win over the Seahawks, Matt Maiocco of NBC Sports Bay Area reports.

Witherspoon was already known to have sustained a knee sprain, but which ligament was affected was previously unclear. The 23-year-old appears to have avoided a major injury, yet the typical recovery timeframe likely means he will be sidelined for the final two weeks of the season.

Witherspoon's (knee) MRI revealed no major injuries, but he's likely out for the final weeks of the season, Ian Rapoport of NFL Network reports.

Witherspoon sprained his knee against the Seahawks on Sunday. Though he isn't likely to see the field in the final two weeks, he shouldn't need surgery or a long recovery process in the offseason. The news bodes well for the young cornerback's future. Look for Tarvarius Moore to see an uptick in playtime with Witherspoon out.

Witherspoon has been diagnosed with a knee sprain and will have an MRI on Monday, Eric Branch of the San Francisco Chronicle reports.

It sounds like Witherspoon avoided a major injury Sunday, although further tests are needed to confirm the diagnosis. He was injured and departed before he could accumulate any stats against the Seahawks.

Witherspoon (knee) has been ruled out of Sunday's game against the Seahawks, Matt Maiocco of NBC Sports Bay Area reports.

His being ruled out so quickly is not a good sign regarding the health of the knee after he got hurt in the 49ers' first defensive series. Tarvarius Moore will continue to hold down the fort at cornerback.