ALAMEDA, Calif. (AP) -- The Oakland Raiders will be without wide receiver Amari Cooper for Sunday night's game against the Dallas Cowboys.
Cooper aggravated a left ankle injury during last week's loss to Kansas City after sitting out the previous game because of the same injury and a concussion.
The two-time Pro Bowl receiver has not practiced at all this week, although Raiders coach Jack Del Rio sounded optimistic.
Cooper had played in 43 consecutive games to begin his career before injuring his ankle and suffering a concussion against Denver on Nov. 26 after getting hit by Broncos safety Darian Stewart. Cooper re-injured the same ankle last week while blocking during a running play against the Chiefs, the latest setback in what has been an up-and-down year both for him and Oakland's offense.