Judge allows tape in Barry Bonds trial

SAN FRANCISCO -- A federal judge in the perjury case against Barry Bonds on Tuesday decided to allow an audio recording in which, prosecutors say, the baseball star's personal trainer discussed his steroids use.

ESPN's Outside the Lines independently acquired the secret tape recording, which prosecutors contend was made early in the 2003 season by Bonds' former business partner Steve Hoskins. On it, prosecutors say, Bonds trainer at the time, Greg Anderson, describes the performance enhancing drug he was administering to the man who would become the all-time home run king.

"So, everything that I have been doing at this point, it's all undetectable," the man, identified as Anderson, said on the recording. "See, the stuff I have, we created it, and you can't buy it anywhere else, can't get it anywhere else, but you can take the day of [the test], pee, and it comes up perfect."

Bonds' lawyers had asked the judge to exclude the recording from his upcoming trial on charges that he lied to a grand jury when he said he never knowingly took performance-enhancing drugs. They argued that since Anderson is refusing to testify, there's no way to authenticate the topic of discussion.

Anderson served 16 months in federal prison on contempt for refusing to cooperate with federal prosecutors.

Prosecutors plan on calling Hoskins to the stand. The trial is scheduled to start March 21.

The judge also on Tuesday refused to throw out one of the five charges alleging Bonds lied to a grand jury in December 2003 when he testified he never knowingly took steroids.

His lawyers complained that the charge was too vague. The charge alleges Bonds' testimony obstructed the grand jury's investigation into sports doping.

The judge ruled the charge was specific enough for Bonds to mount a defense during his month-long trial.

Information from The Associated Press is included in this report.