RBs on to positional drills … The RBs are through the second run of their 40s at today’s combine. There actually wasn’t a ton of speed on the field with only a half dozen breaking the 4.50 mark, however, most of the top prospects were solid including Saquon Barkley (4.41), Derrius Guice (4.49), Nick Chubb (4.53), Sony Michel (4.55), Rashaad Penny (4.47) and Bo Scarborough (4.52). Here are the full unofficial 40 times for RBs.
