5 to watch: Big Ten signing day preview 

January, 21, 2014
1/21/14
8:00
AM ET
Signing day is inching closer and closer, which means there are questions out there. The Big Ten has plenty of top targets remaining.

Here are five things to watch within the conference as signing day approaches:

ESPN Sport Science - Randy Gregory Ruins A Tackling Dummy
NFL Draft prospect Randy Gregory delivered a hit that knocked the head of a tackling dummy, one of the hardest hits ever measured in the lab. To see more of how Gregory fared, check out the ESPN Sport Science draft combine special on April 23.
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