All three were hurt in Denver's 41-7 loss at New England on Monday night. Boss Bailey and Ramsey were placed on the reserve/injured list Wednesday.
Boss Bailey is scheduled to have microfracture surgery on his left knee.
Ramsey injured his throwing elbow on a second-quarter sack.
Champ Bailey suffered a groin injury covering Randy Moss in the first half and didn't return.
The Broncos also placed offensive tackle Erik Pears on the reserve/non-football illness list for an appendectomy and released defensive tackle Steven Harris from the practice squad.