Baseball slugger Mark McGwire, a couple weeks back, openly admitted to steroid use during the years he had his highest home run hits. The story that wasn't told was how Mark McGwire was introduced to performance-enhancing drugs in the first place. Mark McGwire's brother reveals himself as the one who introduced the former slugger to steroids, and questions his brother's claim that he used the drugs strictly for health purposes and that they didn't boost his power.In his book "Mark and Me: Mark McGwire and The Truth Behind Baseball's Worst-Kept Secret," Jay McGwire said Mark should "really" come clean:

"(Mark) knows that he (was) getting stronger and bigger, come on," Jay McGwire, the youngest of the five McGwire brothers, said during a series of interviews with ESPN. "He is coming across that it is only for health reasons but he put on 30 pounds of lean muscle mass. That is why a lot of people don't understand why he is not really coming out clean like that. Why not just admit it all? It is OK, everyone knows how powerful these drugs are."