Bonds is charged with 14 counts of making false declarations to a grand jury in December 2003 and one count of obstruction of justice. His lawyers on Monday asked a judge to toss out 10 charges. He has pleaded not guilty to all counts and is scheduled for trial on March 2.
Bonds, an unsigned free agent, hit .276 last year with 28 home runs, 66 RBIs and a major league-high 132 walks. He doesn't admit nor deny using steroids in the latest court filing.
Instead, Bonds' lawyers argue that "the questions posed to Mr. Bonds by two different prosecutors at his grand jury appearance were imprecise, redundant, overlapping and frequently compound."
For instance, they argue that when Bonds denied if he had "taken anything like" steroids, he was answering a "fundamentally ambiguous" question.
A spokesman with the U.S. Attorney's office in San Francisco declined comment.
The 15 counts pending against Bonds are contained in a second federal indictment charging Bonds with repeatedly lying when he testified that he never used performance-enhancing drugs.
A federal judge threw out the first indictment and ordered prosecutors to draft a new one after she found the document had too few charges alleging too many lies.
