Nelson (hamstring) was a full participant in Thursday's practice, Matt Schneidman of The San Jose Mercury News reports.
Nelson suffered a hamstring injury in the team's third preseason game against the Packers, but he appears to be progressing towards a full recovery. The fourth-round pick stands to play a key rotational role at nickel corner to begin the 2018 regular season, and he appears on track to suit up for Monday's season opener against the Rams.