The Cowboys added McFadden (elbow) to their 53-man roster Tuesday, Todd Archer of ESPN.com reports.
As expected, McFadden will be available after taking part in practice the past three weeks. Granted, his participation was merely with the scout team, but he may start to gain some reps as a pass-catching back as the playoffs approach. For now, though, McFadden will likely just be an option as a returner, per head coach Jason Garrett.