McGwire 's admission to using steroids throughout the 1990s could n't have been much of a surprise to anyone .
It was strange McGwire claimed to have kept it a secret from McGwire 's closest friends and family .
McGwire 's admission to using steroids throughout the 1990s could n't have been much of a surprise to anyone , although it was strange he claimed to have kept it a secret from his closest friends and family .