You know how people say you should look up to idols? Well, in this case, don't! You have no clue what their personal lives are like and what they do on the field. If you're going to be someones idol, be your own idol and do the right thing."
He told Costas that studying pitchers and making his swing shorter led to his increase in home runs and that he could have hit them without PEDs.
"I truly believe so," McGwire said. "I believe I was given this gift. The only reason I took steroids was for health purposes."
During a 20-minute telephone interview with the AP shortly after McGwire released his statement, his voice repeatedly cracked.
"It's very emotional, it's telling family members, friends and coaches, you know, it's former teammates to try to get ahold of, you know, that I'm coming clean and being honest," he said. "It's the first time they've ever heard me, you know, talk about this. I hid it from everybody."
Selig, in a statement released by Major League Baseball on Monday, said he was pleased with McGwire's admission.
"I am pleased that Mark McGwire has confronted his use of performance-enhancing substances as a player. Being truthful is always the correct course of action, which is why I had commissioned Senator George Mitchell to conduct his investigation. This statement of contrition, I believe, will make Mark's re-entry into the game much smoother and easier," Selig said.