Robinson (hamstring) has been ruled out for Sunday's game against the 49ers, Will McFadden of the Falcons' official site reports.
Robinson made a surprise appearance on the Falcons' first Week 7 practice report Wednesday as limited due to a hamstring injury, but he capped the week with back-to-back DNPs and thus will miss his first game of the season Sunday. Atlanta will need to bring up Khalil Herbert from the practice squad Saturday to provide support behind top RB Bijan Robinson this weekend.