The San Francisco 49ers head into their Week 3 matchup against the Arizona Cardinals dealing with a thin defensive line and a banged-up receiver room, though the offensive skill positions that matter most for fantasy managers appear to be trending in the right direction. Christian McCaffrey and Trent Williams both progressed from a Wednesday absence to full practice participation by Friday, a strong sign for the offense's health entering the game.
The official #49ers injury report vs the Cardinals pic.twitter.com/V2zPmBiJz1
— Sleeper49ers (@SleeperSF49ers) September 24, 2026
Defensive line takes a significant hit
Pass rusher Nick Bosa is officially out for Sunday's game, sidelined by a combination of knee and calf injuries that kept him out of every practice session this week. Bosa's absence is a notable blow to San Francisco's pass rush, but it carries no direct fantasy relevance beyond boosting the outlook for opposing offensive fantasy assets facing a lighter defensive front. Joining Bosa on the sideline is defensive lineman Romello Height, who is out with a hand injury after failing to practice all week, and defensive lineman James Thompson Jr., who is also out with an ankle issue after a similarly absent practice week. Losing three members of the defensive line rotation could open things up for Arizona's offense, which is worth monitoring if any Cardinals skill players are rostered in fantasy lineups this week.
Wide receiver room banged up but trending toward availability
The receiver position carries the most fantasy-relevant question marks on San Francisco's injury report. Mike Evans is questionable with a hip injury, having missed Wednesday and Thursday practice before returning in a limited capacity Friday. That trajectory suggests Evans has a real chance to play, but his limited practice time all week means fantasy managers should have a contingency plan ready in case he is downgraded closer to kickoff or plays a reduced snap count. Demarcus Robinson is out with an ankle injury after being unable to practice at all this week, removing him from San Francisco's receiver rotation and likely pushing more snaps to the healthy bodies behind him on the depth chart.
McCaffrey and Williams trending toward full go
The best news for fantasy managers is on the offensive side of the ball, where the two most fantasy-critical names on the injury report both improved as the week progressed. Christian McCaffrey did not practice Wednesday but returned as a full participant Thursday and Friday, a pattern that typically points toward game availability without a corresponding game-status designation. The same held true for left tackle Trent Williams, who followed an identical Wednesday absence before back-to-back full practices to close the week. Neither player carries an official questionable, doubtful, or out tag, which is the clearest signal the team is not worried about their readiness for Sunday.
Linebacker Dre Greenlaw also mirrors that exact pattern, sitting out Wednesday before returning to full practice Thursday and Friday without any accompanying game-status concern.
Fantasy football takeaways
For fantasy purposes, McCaffrey's clean trajectory toward full practice status is the headline. He remains a must-start running back this week regardless of the Wednesday absence, since the two subsequent full practices and lack of an official designation both point toward an every-down workload against Arizona. Trent Williams protecting the blindside without restriction is a positive undercurrent for the entire San Francisco passing attack and quarterback protection.
Mike Evans' questionable tag is the one situation demanding real attention before lineups lock. His limited Friday session after two missed days is a mixed signal, and fantasy managers rostering him should check the final injury report and any late-week practice reports before kickoff. If Evans sits or is limited in snaps, expect a bump in target share for the healthy receivers on San Francisco's depth chart, making those complementary pass catchers worth a speculative look as thin-margin flex plays. The defensive line absences, meanwhile, matter far more for season-long defense/special teams rankings and daily fantasy contrarian plays than for the 49ers' own offensive fantasy assets.