ALAMEDA (AP) — The Oakland Raiders may have to reach way down on the depth chart to fill out their backfield for Sunday’s game in New York.

Darren McFadden is sidelined again, this time with an ankle injury. Rashad Jennings has made progress since suffering a concussion last week but has yet to be cleared. Not even third-stringer Jeremy Stewart, who is nursing a combination of ankle and knee injuries, was able to practice Wednesday.

That forced the Raiders to turn to a player who hadn’t taken a single snap at running back since 2012 for help.

Taiwan Jones, a fourth-round pick who was converted to cornerback during the offseason, practiced with the first-team offense and could conceivably start against the Jets if Oakland’s injured running backs aren’t able to do so.