Pittsburgh, PA (SportsNetwork.com) - Miami Dolphins running back Lamar Miller
left Sunday's game against Pittsburgh with a concussion.
Miller took a hard hit late in the first half and did not return. He had six
carries for 20 yards and two catches for 13 yards before exiting.
The Miami-Florida product, in his second season, entered the contest leading
the Dolphins with 547 rushing yards.
The Sports Network