Herbert (ankle) doesn't have an injury designation for Thursday's game against the Broncos.
The Chargers held a walk-through practice Wednesday but estimated that Herbert would have been a full participant in a more strenuous session. He was listed with ankle and thigh injuries last week, before suiting up and completing 21 of 33 passes for 195 yards, two touchdowns and one interception in a 40-17 loss to Tampa Bay. Another loss Thursday night would make the Chargers highly unlikely to enter the AFC playoffs as anything better than the No. 7 seed, while a win would keep them in the running for the fifth or sixth seed.