Gibson (shoulder) was a full participant during Tuesday's practice session, John Keim of ESPN.com reports.
Gibson's progression from limited to full after just one session clears the way for him to play in Thursday's contest against the Giants. The second-year back got off to a solid start in the season opener versus the Chargers, rushing 20 times for 90 yards while reeling in three of his five targets for another 18 yards. He should be in line to head the Washington backfield again this week.