The Pittsburgh Steelers placed offensive tackle Levi Brown and tight end-fullback David Johnson on injured reserve.
Brown injured his triceps prior to his first game after being acquired via trade from the Arizona Cardinals.
Johnson has a wrist injury.
The Steelers signed veteran free agent tight end Richard Gordon and promoted cornerback Isaiah Green from the practice squad.
Follow me on Twitter: @RavensInsider
Aaron Wilson covers the Ravens for The Baltimore Sun.
Check out our partners at TiqIQ for the best deals on all games on the 2014 NFL schedule.
SEP 12 Football Rumor Mill
Here's what you need to know after 2 weeks of college football.
SEP 11 Jesse Lawrence
Jesse Lawrence takes a look at some affordable NFL action this weekend.
SEP 07 Joel Corry
Can the Seahawks repeat? Are the Chiefs and Panthers ripe for a fall? The NFP takes a look at those questions and more.