Michael Crabtree was the Raiders’ most active receiver Sunday, targeted on 17 of Derek Carr’s 38 pass attempts and catching two touchdowns. But Crabtree wasn’t on the field for the last play of the Raiders’ 20-17 loss to the Cowboys. And he wasn’t happy about it. Crabtree told reporters afterward that officials sent him off the field before the final play to be evaluated for a concussion. A Raiders spokesman said Crabtree was evaluated for a concussion but cleared and was not in concussion protocol after the game. “I just don’t understand why they took me out of the last play of the game,” Crabtree said. “They put me in concussion protocol like two plays after the pass-interference call. I don’t know. I’m lost. I don’t understand.” With 1:01 left in the game, Crabtree was targeted on a deep throw from Carr on 4th and 10 that drew pass interference on Dallas. The penalty moved the Raiders from their 30-yard line to the 15 of the Cowboys.