A-Rod admits using steroids to ESPN

"If you're a fan of major league baseball, I think it tarnishes an entire era, to some degree," President Barack Obama said during his first presidential news conference.

Rodriguez was apologetic but was not forthcoming with details.

He sidestepped a question about how he obtained the banned drugs and said he didn't even know what substance he was guilty of using.

"Back then it was a different culture," Rodriguez said. "It was very loose. I was young. I was stupid. I was naive, and I wanted to prove to everyone that, you know, I was worth, you know - and being one of the greatest players of all time."

He does hope he will be forgiven by Yankees fans, already frustrated because Rodriguez has failed to lead the team into the World Series during his five seasons in New York.

"I think New Yorkers like honesty. I think they like people that say the truth. I also think they like great players that know how to win. And I think winning's the ultimate medicine we can take here," he said. "If we can win a championship, if we can play well, if we can play well down the stretch, I think New Yorkers love to forgive you."

Rodriguez said he used banned drugs only while with Texas, and that he was clean when he played for the Seattle Mariners from 1994-2000. He said he quit during spring training in 2003, before the first of three AL MVP seasons, because "I've proved to myself and to everyone that I don't need any of that."

He was traded to the Yankees before the 2004 season, and said he hasn't used since.

The admission came two days after Sports Illustrated reported on its Web site that Rodriguez was among 104 names on a list of players who tested positive for steroids in 2003, when testing was intended to determine the extent of steroids use in baseball. The results weren't subject to discipline and were supposed to remain anonymous, but were seized by the government in 2004 and remain under seal.

"When I arrived in Texas in 2001, I felt an enormous amount of pressure. I felt like I had all the weight of the world on top of me and I needed to perform, and perform at a high level every day," Rodriguez said. "And I did take a banned substance and, you know, for that I'm very sorry and deeply regretful."

Rodriguez said part of the reason he started using drugs was the heat in Texas.

"Can I have an edge just to get out there and play every day?"

he said to himself. "You basically end up trusting the wrong people. You end up, you know, not being very careful about what you're ingesting."

Though Rodriguez said he experimented with a number of substances, he never provided details.

"It was such a loosey-goosey era. I'm guilty for a lot of things. I'm guilty for being negligent, naive, not asking all the right questions," Rodriguez said. "And to be quite honest, I don't know exactly what substance I was guilty of using."

SI reported Rodriguez tested positive for Primobolan and testosterone.

He said he stopped using during spring training 2003, when he sustained a neck injury. It was just as baseball started its drug-testing survey. It was only in 2004 that testing with penalties began.

Rangers owner Tom Hicks said the admission caught him by surprise.

"I feel personally betrayed. I feel deceived by Alex," Hicks said in a conference call. "He assured me that he had far too much respect for his own body to ever do that to himself."

During those three seasons, Rodriguez led the American League in homers each year and averaged 161.7 games, 52 homers, 131.7 RBIs and a .615 slugging percentage. In the other 10 full seasons of his career, he averaged 149.2 games, 39.2 homers, 119 RBIs, and a .574 slugging percentage, according to the Elias Sports Bureau.

"This is three years I'm not proud of," Rodriguez said.

The 33-year-old Rodriguez ranks 12th on the career list with 553 homers, including 52, 57 and 47 in his three seasons with the Rangers. He is 209 behind Barry Bonds' record 762.

Rep. Elijah Cummings, a Maryland Democrat who sits on the House committee that brought Roger Clemens, Mark McGwire and other baseball players to Capitol Hill in recent years, favored a congressional hearing with Rodriguez.

"It would be good perhaps for us to sit down and talk to him," Cummings said in a telephone interview. "I would think that he would want to cooperate with us so that the Congress would have the information it may need."

The Yankees said in a statement that "we urged Alex to be completely open, honest and forthcoming" and that "we take him at his word that he was."

"Although we are disappointed in the mistake he spoke to today, we realize that Alex - like all of us - is a human being not immune to fault," the team said. "We support Alex, and we will do everything we can to help him deal with this challenge."

Rodriguez's admission was in stark contrast to the denials of Bonds and of Clemens, Rodriguez's former Yankees teammate.

Bonds, a seven-time MVP, is scheduled for trial next month on charges that he lied when he told a federal grand jury in 2003 that he never knowingly used performance-enhancing drugs. Another federal grand jury is considering whether to indict seven-time AL Cy Young Award winner Clemens on charges he lied when he told a congressional committee last year that he never used steroids or human growth hormone.

Monday's interview directly contradicted a December 2007 interview with CBS's "60 Minutes," when Rodriguez said "No" when asked if he had ever used steroids, human growth hormone or any other performance-enhancing substance.

"I wasn't even being truthful with myself," he said Monday.

"Today, I'm here to tell the truth."