Raiders TE Nick Kasa was carted off the field with a knee injury in Wednesday's joint practice with the Cowboys.
Raiders TE Nick Kasa sustained a concussion in Sunday's Week 14 loss to the Jets.
Raiders signed sixth-round TE Nick Kasa to a four-year contract.
Coach Bruce Allen referred to the Raiders' starting tight end spot as "wide open."
Raiders selected Colorado TE Nick Kasa with the No. 172 overall pick.