Barry Bonds was indicted Thursday for perjury and obstruction of justice, charged with lying when he told a federal grand jury that he did not knowingly use performance-enhancing drugs. The indictment, unsealed Thursday by federal prosecutors in San Francisco, is the culmination of a four-year federal probe into whether he lied under oath to a grand jury investigating steroid use by elite athletes. The indictment comes three months after the 43-year-old Bonds, one of the biggest names in professional sports, passed Hank Aaron to become baseball's career home run leader, his sport's most hallowed record. Bonds, who parted ways with the San Francisco Giants at the end of last season and has yet to sign with another team, also holds the game's single-season home run record of 73.