Darnold out against Cardinals with quad injury

Seattle Seahawks coach Mike Macdonald said Wednesday that quarterback Sam Darnold will miss Sunday’s Week 9 game against the Arizona Cardinals with a quad injury. Macdonald said Drew Lock is planned to start, with Jalen Milroe as the backup, though Lock is also recovering from an injury and his throwing workload is being managed this week. Darnold is considered week to week and will not be placed on injured reserve, Macdonald said. The coach said a separate rib injury is not the reason for Darnold’s absence: Darnold cracked a rib early in Monday’s loss to the Chicago Bears, but the quad injury suffered later in the game is keeping him out against Arizona. Lock’s status remains a factor in the quarterback plan. Macdonald said Lock is able to throw, but the team is working out how much he can handle in practice. The coach said Lock will throw during the week and that the Seahawks will manage his workload. Milroe is preparing as the backup, and Macdonald has not ruled out adding another quarterback before Sunday if needed. The reports differ on the nature of Lock’s injury, with most describing an elbow issue and one describing a rib injury. Macdonald’s reported comments identify...