NFL players will be required to provide blood samples during training camp physicals for a study on human growth hormone, according to emails the players’ association sent to its members that were obtained by USA TODAY Sports.
The population study will be used to determine what a “normal” HGH level is for an NFL player as negotiations continue on several other issues, including discipline for those caught with increased HGH levels, before testing is implemented across the league.
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Edited by , July 26, 2013 - 02:09 PM.