A good showing at the combine can really improve your draft stock.
Who can forget the case of Darius Heyward-Bey? A possible first round choice, Bey vaulted up team's and analysts draft boards after running a 4.3 forty yard dash at the combine.
The Raiders eventually took him seventh overall, ahead of Texas Tech WR Michael Crabtree, the universal top ranked WR.
As this story illustrates, a good combine can really help your draft status.
Here are ten players who need good showings at the the combine to further establish their draft day prospects.