Samuel (hamstring) was a limited practice participant Thursday, Nick Wagoner of ESPN.com reports.
With back-to-back capped sessions under his belt, Samuel is progressing toward his first appearance since Week 7, when he sustained a hamstring injury. However, the 49ers likely want the second-year wide receiver to bump up to full, if possible, before clearing him for game action. Friday's practice report may give an indication of his potential to return Sunday against the Rams.