Herbert rushed nine times for 31 yards and wasn't targeted in Saturday's 33-6 preseason win over the Bills.
D'Andre Swift got two of the first three touches among Chicago's running backs and took a screen pass 42 yards before ceding the next eight touches to Herbert while the Bears' starters were in the game. Roschon Johnson didn't play against Buffalo after starting the Hall of Fame Game last week, so it remains unclear where Herbert stands relative to Johnson in a backfield that will likely be led by Swift but have room left over for at least one more meaningful contributor. Herbert will look to bolster his case for regular-season playing time in next Saturday's preseason game against the Bengals.