Raiders running back Darren McFadden will play in the preseason, reports Comcast Sports Net.
"I've seen it where guys like Darren don't play in the preseason, and I've seen it where those guys do," Allen said. "It's my feeling that guys need to play. The anticipation is we'll play him (each game). In terms of how much we'll play him, we'll evaluate that on a week-to-week basis."
McFadden likes the way the new offensive system in Oakland is coming together in training camp.
"They've done a great job of driving off the line and creating space for me to run," McFadden said. "I'm looking forward to a game situation with those guys and being able to run this offense at full speed."