Running back Travis Henry suffered an undisclosed rib injury and was replaced by Selvin Young in the fourth quarter.
Cornerback Dre' Bly separated his right shoulder while intercepting a pass from quarterback Ben Roethlisberger.
Bly may be in the best shape of the three, as he played through the separation for the remainder of the game. Shanahan said the team's extra day-and-a-half off should allow Bly enough time to recover from any lingering effects.
But Henry and Scheffler could be different stories.
The Broncos had Monday off, and Shanahan said both Henry and Scheffler would be re-evaluated when the team returns to practice on Wednesday.
"Any time you deal with ribs, you're not too sure," Shanahan said of Henry. "(Scheffler) is still a little bit sore. Exactly how bad that is, we'll find out Wednesday."
The Broncos already have lost tight ends Stephen Alexander (calf) and Nate Jackson (groin) for the season.
Copyright 2007 by The Associated Press