Bosa (ankle) participated in light conditioning drills Wednesday, Cam Inman of The San Jose Mercury News reports.
Bosa is managing an ankle sprain suffered during practice last week. The No. 2 overall pick has now shed his walking boot and appears to have resumed a light practice workload, but remains ruled out for the preseason. If Bosa is able to keep taking steps in the right direction, it's possible that he could play Week 1.