“The defense has several story lines they can go after, from the possibility that he was a guinea pig for his trainer testing relatively new substances, to the motivation of his mistress to get revenge after he cut her off,” says Mason.
On Monday, 41-year-old Kimberly Bell testified that she became Bonds’ girlfriend when she was 24 and he was in the process of divorcing his first wife. She said he told her in 1999 or 2000 that he was using steroids and that he blamed the drugs for an elbow injury.
Ms. Bell said that from 1999 to 2001, Bonds “was just increasingly aggressive, irritable, agitated, very impatient."
The trial’s proceedings got an infusion of additional baseball star-power Tuesday afternoon with the testimony of the Giambi brothers, Jason and Jeremy, both of whom have admitted to steroid use.
Jason Giambi, currently the Colorado Rockies first baseman and the 2000 American League Most Valuable Player, testified that he received performance-enhancing drugs and instructions on their use from Greg Anderson, Bonds's former trainer, who is jailed for refusing to testify.
Also testifying was former San Francisco Giants outfielder Marvin Benard, who said Mr. Anderson injected him with a steroid around 1999.
Both Giambis said Anderson mailed them products of the Bay Area Laboratory Cooperative (BALCO) that were undetectable steroids, and told them how to use them.