[cnn-photo-caption image= http://am.blogs.cnn.com/files/2010/01/mcgwire.jpg caption="Mark McGwire hit 583 home runs in his career, including a then-record 70 in 1998."] By SI.com Staff Mark McGwire has admitted taking steroids in 1998 when he broke Roger Maris' home run record. "I used steroids during my playing career and I apologize," McGwire said in his statement. "I remember trying … Continue reading McGwire: I used steroids