Spiller, Best lacking ideal size

Two of the top three running backs on our board measured on the smaller side. Clemson's C.J. Spiller checked in at 5-foot-10⅝ and 196 pounds, while California's Jahvid Best was 5-10⅛ and 199.

Size is not as much of an issue for Spiller, who plays a versatile role that includes kickoff returns. Best, however, dealt with nagging injuries throughout his college career and there are questions about whether he has the frame to take a pounding as an inside runner. Medical exams, including evaluation of the serious concussion Best suffered late in the 2009 season, will also be closely scrutinized.

Dwyer looking good

Georgia Tech RB Jonathan Dwyer measured 5-11¼ and 229 and appears to be in good shape by his standards. We mentioned in our running back breakdown that Dwyer would do well to show up under 230 pounds to avoid looking sluggish and this is a pretty good start for him.

Mathews, Hardesty solid

Fresno State's Ryan Mathews, the No. 2 back on our board, showed up and 5-11¾ and 218 and it was hard to find any fat on his body. Tennessee's Montario Hardesty is 5-11⅝ and has bulked up to 225 pounds, and he is carrying the extra weight well.

Hardesty still faces questions about nagging knee problems and Mathews about how much of a role he can play in the passing game, but each gained a little momentum during the weigh-in.

No surprise with McCluster

A lack of size has always been an issue for Ole Miss RB/WR Dexter McCluster and he is as small as advertised at 5-8¾, 172. If McCluster is going to play a versatile, Darren Sproles-type role in the NFL he must clock one of the fastest 40-yard dash times among running backs. Something in the 4.4-second range will solidify his second-round grade.

Big backs could stand to trim down

Oregon's LeGarrette Blount (6-0.5, 241) and LSU's Charles Scott (5-11⅜, 238) are two of the biggest backs in the 2010 class and both could stand to drop a few pounds.

Blount is a powerful runner but there are questions about his ability to turn the corner at the NFL level while Scott is not quite the bruiser his frame suggests and lacks burst out of his cuts.

Be sure to check back throughout the day as we update the wide receiver group and chime in with scouting takes on the big news coming out of Indy.