Christian Kirk Ruled Out for Week 9 Matchup vs. Raiders with Knee Injury

San Francisco 49ers wide receiver Christian Kirk (knee) has been ruled out for Sunday's game against the Las Vegas Raiders. Kirk sustained a knee injury during Wednesday's practice session and was unable to suit up for the remainder of the week. He joins fellow wideouts Mike Evans and Deebo Samuel Sr. on the sideline, severely depleting San Francisco's receiving options for Week 9.