Rams wide receiver Cooper Kupp had a disappointing performance in Sunday's loss to Dallas, with only 4 catches for 21 yards. However, the bigger concern for the team is the injury to quarterback Matt Stafford's right thumb. Stafford left the game in the second half and did not return. The Rams will closely monitor his status for the upcoming week. Backup quarterback Brett Rypien took over but struggled in his limited attempts. The Rams will face the Green Bay Packers in Week 9.