Bolden and Ameer Abdullah both have been getting passing-down work with the first-team offense in recent practices, Tashan Reed and Vic Tafur or The Athletic report.
Earlier reports suggested Abdullah was the favorite for the role as Las Vegas' preferred pass-catching back, but Bolden is a capable receiver who has a lengthy history with Raiders head coach Josh McDaniel. Both backs have ample experience on special teams, so the Raiders can afford to keep four running backs on the Week 1 roster, with the two mentioned above joined by probable starter Josh Jacobs and rookie Zamir White.