Alfred Collins' knee injury tests 49ers' defensive-line depth in first injury report
San Francisco's first injury report lists Alfred Collins with a knee issue, adding to questions about the defensive line depth as multiple players (including Bosa, Greenlaw, and Halton) are listed with injuries or designations. McCaffrey and Evans were not listed. James Thompson missed practice with a hamstring, leaving Odighizuwa and CJ West as the remaining healthy defensive tackles, while the status of Renardo Green and others will be updated as the week progresses.
