WR Justin Blackmon » He has the physical skills teams want in a receiver. However, he's only around 6-foot tall (though he plays bigger) and is not a blazer. If he runs the 40-yard dash in 4.5 seconds he'll most likely solidify himself as a top-six pick. If not, it could get interesting for the top wideout in the draft.
QB Robert Griffin III » He's going to run but won't throw at the combine. Anyone who wants to see his arm, put on the tape. It's good. And everyone says he'll ace the interview portion. So what's left for him? His height. He's listed as being 6-foot-2 and if that checks out then he's good to go. But if he somehow measures smaller than that, is it possible he'll drop? That's doubtful, but it may preclude some teams from trading up for him.
WR Alshon Jeffery » He's not entering the combine with a lot of momentum. In fact, it's the opposite. He needs to run a fast time in the 40-yard dash, but even if he does it might not matter to some. One scout said what worried him is that he did not look fast on film. That matters. So if he runs a fast time at the combine, teams must ask themselves: where was that guy on film?
CB Janoris Jenkins » There's a lot of talent but a lot of concern over his character. Florida kicked him out of school after his second drug arrest. Jenkins has a high first-round talent, but teams could be scared by his background, unless he starts wowing them in interviews.
OT Andrew Datko » Scouts say he has excellent ability -- possibly a second-round pick -- but the biggest test for him is how his shoulder checks out physically. It shortened both his 2010 and '11 seasons and has required multiple surgeries.
- John Keim