Rookies from Rounds 4-7 who will play immediately

Unstoppable back in Samaje Perine (0:44)

Mel Kiper Jr. sees Oklahoma's Samaje Perine as a running back with incredible upper-body strength that will make him dominant in short-yardage situations. (0:44)

Day 3 of the NFL draft isn't when you look for players who will play a role right away. But in most cases, at least Rounds 4 and 5 are filled with talented players who could have been taken earlier if not for a clear deficiency in at least one area.

With that said, year after year we find that this is where solid roster depth is made, and immediate starters pop up. In a league of attrition, many of these guys are just an injury away from significant playing time.

After taking a look at 2017 early-impact rookies on Day 1 and Day 2, here's a quick look at some names from Rounds 4-7 who could have early roles. I've added notes on some others as well.

Mel Kiper's draft grades | Todd McShay's favorite picks