Raiders RB Michael Dyer making an impression

Running back Michael Dyer entered Raiders camp as an undrafted free agent, but he has been turning heads with impressive efforts thus far, per ESPN.com.

Dyer has stepped into the role of No. 2 back that was supposed to be filled by Trent Richardson, who has yet to participate in camp. Dyer, whose off-field troubles overshadowed his career at Alabama and Louisville, has taken advantage of the extra snaps.

"I think Michael's done a nice job developing from what we saw in the spring to now," Oakland coach Jack Del Rio said. "He's more comfortable, he's more accountable, more dependable in special teams units and the offense. Every now and then he'll pop through there and show some of that speed that he has, so I think he's off to a nice start."