Stukes (concussion) did not participate at the Raiders' practice Wednesday, Ryan McFadden of ESPN.com reports.
Stukes suffered a concussion during the team's 26-14 win over the Chargers on Sunday, and he now appears to be at risk of missing the Raiders' Week 3 matchup with New Orleans. If he is unable to clear concussion protocol, Isaiah Pola-Mao would likely start at free safety against the Saints.