article_snippet.sent: The NFL waill now have to investigate how a heavy drug using sports star could have avoided rigorous testing designed to weed out drug cheats.
article_snippet.sent: a heavy drug using sports star will have to consider whether sports star may have had a supply of masking agents which can be bought over the counter or Hernandez stayed clean long enough each summer to pass pre-season tests and then fell off the wagon without fear of being caught.
article_snippet.sent: Either finding will prompt calls for more rigorous testing of The NFL players for illicit substances.