Cook worked out in shoulder pads and helmet, and looked solid running through tackling dummies, according to Sonnone.
Head coach Jimbo Fisher said during a radio show Wednesday that Cook, who has been listed as day-to-day, is making good progress.
Cook is currently leading the Seminoles in rushing, tallying 570 yards and six touchdowns on 66 carries this season. The sophomore split carries with Karlos Williams last season, rushing for 1,008 yards and eight touchdowns.
He was named second-team All-ACC in 2014.