Stukes suffered a concussion and has been ruled out for the remainder of Sunday's contest against the Chargers, Vincent Bonsignore of the California Post reports.
Stukes was officially diagnosed with the injury after he was removed from the contest for the second time for evaluation, per Ryan McFadden of ESPN.com. In Stukes' absence, Isaiah Pola-Mao will stand to operate as the team's primary free safety versus Los Angeles.