SANTA CLARA (CBS SF) — The injury-ravaged San Francisco 49ers confirmed Monday what their Faithful feared, star defensive end Nick Bosa suffered a torn anterior cruciate ligament on Sunday and is expected to miss the rest of the season.

Later Monday, it was confirmed fellow defensive lineman Soloman Thomas also suffered a torn ACL.

READ MORE: UPDATE: Flood Waters Shut Down Lanes Of I-880; Alameda's Harbor Bay Parkway, Silverado Trail In Napa

Bosa’s and Thomas’s injuries were one of several injuries yesterday to 49ers starting players, including Jimmy Garoppolo, and Raheem Mostert.

ALSO READ: Injury-Ravaged San Francisco 49ers Question Safety Of MetLife Stadium Artificial Turf

READ MORE: Atmospheric River: Santa Cruz County Officials Lift Evacuation Orders For CZU Fire Burn Zone

Head coach Kyle Shanahan said Garoppolo was questionable for Sunday’s game after suffering a high ankle sprain, while Mostert was doubtful with an MCL sprain.

ALSO READ: Shanahan: QB Jimmy Garoppolo Injured On Illegal Hit; Could Be Ready To Play Sunday

Backup running back Tevin Coleman also suffered a sprained knee on Sunday. ESPN’s Adam Schefter reported Coleman was expected to miss multiple weeks.

MORE NEWS: Atmospheric River: San Francisco Bay Area Takes Wild One Day Ride From Extreme Drought To Flooded Streets

The 49ers are also monitoring injuries to tight end George Kittle and defensive end Dee Ford. Cornerback Jason Verrett was expected to return to practice this week; he was expected to help fill the void left by injured starter Richard Sherman.