SAN FRANCISCO , California ( CNN ) -- Steroid test results and notes and calendars from his then-trainer are among the evidence federal prosecutors have amassed in their perjury case against baseball home-run king Barry Bonds , according to documents unsealed Wednesday . Barry Bonds , shown at his most recent court appearance , is accused of lying to a grand jury . The 223-page stack of documents unsealed by a federal judge represents much of the government 's case against Bonds , who is accused of obstructing justice and lying to a grand jury investigating the use of steroids in professional sports . Prosecutors say the test results show Bonds was using performance-enhancing substances -- including a then-undetectable designer drug -- at a time he denied knowingly using any . Bonds ' attorneys are seeking to keep much of that evidence out of court . The 44-year-old former San Francisco Giants slugger holds Major League Baseball 's single-season and all-time home-run titles , but his achievements have been shadowed by allegations he used performance-enhancing drugs . Bonds pleaded not guilty to the perjury and obstruction of justice charges and has been free on $ 500,000 bond . A hearing in the case is scheduled for Thursday . The charges stem from his 2003 appearance before a federal grand jury probing the distribution of steroids by the San Francisco-area Bay Area Laboratory Cooperative , or BALCO . Bonds told the grand jury that his former personal trainer , Greg Anderson , gave him a cream that he said was flaxseed oil to use on his arm in 2003 . Anderson spent three months in prison after admitting distributing steroids and was later jailed for refusing to cooperate with prosecutors . The case against Bonds will include calendars kept by Anderson that prosecutors say were used to keep Bonds and other athletes on a doping regimen -- an assertion expected to be bolstered by the testimony of other athletes , they said . Evidence will include a recording of a phone conversation with an associate in which Anderson `` describes injecting the defendant , having the ability to obtain and utilize inside information about MLB 's random drug testing to the defendant 's benefit and the undetectable nature of what Anderson had been doing , '' according to documents . Bonds won seven National League MVP titles during his 22-year career , 15 years of which was spent with the Giants . The team released him after the 2007 season , just weeks after he broke Hank Aaron 's career home-run record .
NEW : Bonds ' attorneys are seeking to keep many of the documents out of court . NEW : Evidence will include phone conversation about `` injecting the defendant '' NEW : Hearing in the perjury case is scheduled for Thursday . Steroid test results and notes from ex-trainer among documents unsealed .