Oakland's 45-point thrashing of the Broncos didn't go as seamlessly as it seemed.
Receiver Louis Murphy, we're told, has a bruised lung. Murphy is expected to miss Sunday's game against the Seahawks.
Coach Tom Cable has characterized the injury only as a bruised chest.
Murphy, a second-year wideout who joined the team as a fourth-round pick in 2009, has started all seven games this year, with 21 catches for 337 yards and a touchdown.