Smith-Marsette (ankle) didn't practice Wednesday, Adam Caplan of SiriusXM NFL Radio reports.
Smith-Marsette played 10 special-teams snaps and returned three kicks for 100 yards in Monday night's loss to the Steelers, but it appears he sustained an ankle injury in the process. The first-year Giant could be in jeopardy of missing Week 9's matchup against the Commanders if he's unable to upgrade to at least limited participation Thursday or Friday.