AP reports that a federal grand jury is investigating whether Barry Bonds committed perjury when he testified in 2003 that he never used steroids. The panel has been hearing evidence for more than a month about whether Bonds lied to a different grand jury that was investigating the BALCO scandal. The existence of the grand jury was first reported by CNN and the San Francisco Chronicle. The personal surgeon for Bonds was subpoenaed to testify before the grand jury, The Chronicle reported. Dr. Arthur Ting, the physician who treated Bonds for the knee injury that kept him out for most of the 2005 season, was subpoenaed to appear before the grand jury at the . District courthouse in San Francisco later in the month, according to two sources familiar with the investigation.