Bosa (oblique) has been ruled out for Sunday's game against the Bears, Matt Barrows of The Athletic reports.
Bosa was unable to practice this week due to a left oblique injury, and he is set to miss his third straight game. Given the 49ers have a short turnaround before their next game against the Rams on Thursday, Dec. 12, it's possible Bosa will be sidelined for a fourth game. Robert Beal and Yetur Gross-Matos will continue to see more defensive snaps due to Bosa's injury.