SAN FRANCISCO — Barry Bonds was indicted today 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 today against baseball’s home-run king culminated a four-year investigation into steroid use by elite athletes.

“During the criminal investigation, evidence was obtained including positive tests for the presence of anabolic steroids and other performance enhancing substances for Bonds and other athletes,” the indictment read.

In August, the 43-year-old Bonds passed Hank Aaron to become baseball’s career home run leader. Late in the season, the San Francisco Giants told the seven-time National League MVP they didn’t want him back next year. He is currently a free agent.

While Bonds was chasing Aaron, the grand jury was working behind closed doors to complete the long-rumored indictment.

“I’m surprised,” one of Bonds’s attorneys, John Burris, said, “but there’s been an effort to get Barry for a long time. “I’m curious what evidence they have now they didn’t have before.”

The indictment charged Bonds with lying when he said that he didn’t knowingly take steroids given to him by his personal trainer, Greg Anderson. He also denied taking steroids at anytime in 2001 when he was pursuing the season home-run record.

He is also charged with lying that Anderson never injected him with steroids.

“Greg wouldn’t do that,” Bonds testified in December 2003 when asked if Anderson ever gave him any drugs that needed to be injected. “He knows I’m against that stuff.”