Miami's Tannehill ruled out against Steelers; Moore to start (Yahoo Sports)

Ryan Tannehill was ruled out of Sunday's playoff game at Pittsburgh , and backup Matt Moore will start for the fourth week in a row. The Dolphins announced the decision Thursday after determining Tannehill still isn't ready to practice because of a sprained left knee. Moore, a 10th-year pro, is 2-1 as Tannehill's replacement and will make his first career postseason start.