The Steelers needed two big plays from unlikely sources to pull out a season-opening victory behind their backup quarterback. Maybe Dolphins coach Nick Saban should be flagged for a costly delay, too. Tight end Heath Miller chugged his way down the Steelers' sideline on an 87-yard touchdown pass play midway through the fourth quarter, fill-in QB Charlie Batch's third scoring pass of the game, and the Super Bowl champions beat the Dolphins 28-17 Thursday night in the NFL's first game of the season. Ronnie Brown scored two touchdowns, but rushed for just 30 yards on 15 carries.