When the San Francisco 49ers activated All-Pro linebacker Aldon Smith from the non-football injury list a week ago, it wasn't clear if he would play in Week 10.

NFL Media Insider Ian Rapoport confirmed on Friday's edition of NFL Network's "Around the League Primetime" that Smith will indeed play, albeit in a limited role as a situational pass rusher to highlight his strengths.

Niners defensive coordinator Vic Fangio noted that Smith looked "a little rusty" in practice this week. As expected, Smith's conditioning is at less than peak form after missing six weeks for treatment at a rehab facility.