The Cardinals and Chargers will play twice in 11 days, since the rematch of the preseason finale will be played next Monday night.
Thomas Keiser will have the rare ability to play for both teams.
The Cardinals claimed the outside linebacker, who was waived by the Chargers yesterday, according to the league’s transaction notice. They waived wide receiver Walter Powell to make room on the roster.
Keiser also had an arrest for misdemeanor battery from a fight outside a San Diego bar last year. He pleaded guilty, and has to attend anger management classes.
But he’s also a competent pass-rusher, and the Cardinals are looking for all the help they can get after losing piece after piece this offseason.