Keading is a former two-time Pro Bowl selection with the San Diego Chargers. He will replace Carpenter for the rest of the season.
Miami has been fortunate with injuries all season, but the injury bug is hurting the team in December. In addition to Carpenter, Miami could be without starting wide receivers Davone Bess and/or Brian Hartline, who are dealing with back injuries.
The Dolphins will host the Buffalo Bills Sunday at Sun Life Stadium.