Seahawks RB Chris Carson (neck) is out for Sunday night’s game vs. the Steelers. HC Pete Carroll was hoping to get Carson back at practice this week, but it didn’t happen. His status for Week 7 and beyond is uncertain. Alex Collins gets another game as Seattle’s lead back and is a fine volume bet on Sunday night. But consider him just a RB3 or flex with Geno Smith under center and facing Pittsburgh’s 4th-ranked RB defense.