Defensive end Marcus Davenport and linebacker Derrick Barnes were both placed on IR Tuesday after suffering significant injuries in Detroit’s Week 3 triumph over the Arizona Cardinals. Davenport’s injury was reported as torn triceps, while Barnes suffered a knee injury.

The Lions signed WR Tim Patrick from the practice squad to the 53-man roster and still have one open roster spot.

The Lions’ injury situation just keeps getting worse, with linebacker Derrick Barnes expected to be placed on injured reserve after sustaining a knee injury in Detroit’s Week 3 victory over the Cardinals on Sunday, per ESPN’s Jeremy Fowler.

Lions HC Dan Campbell provided injury updates on Marcus Davenport, Sam LaPorta, Derrick Barnes, Alim McNeill and others. We break it all down here.

First, it was Barnes, who exited with a knee injury and did not play a single snap in the second half. LaPorta followed Barnes, leaving the field via the help of a cart in the waning moments of the opening half of play.