SAN FRANCISCO (AP) - Attorneys for Barry Bonds are expected to ask a judge today to exclude much of the government's evidence against him.
That evidence includes a recording of a conversation in which Bond's former trainer allegedly discusses injecting the slugger in the buttocks with a steroid.
Bonds' attorneys argue nothing the former trainer says in the recording clearly refers to Bonds.
The government also claims as evidence urine and blood tests that prosecutors say show Bonds used steroids.
Bonds' attorneys say the tests were so shoddily collected and processed there is no proof the samples belong to him.
The former San Francisco Giant is accused of lying to a federal grand jury when he denied knowingly taking performance enhancing drugs. He has pleaded not guilty to perjury.
© 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.