The Department of Justice has unsealed search-warrant affidavits by a federal investigator on two people involved with steroids in baseball, identifying four more baseball players who may have used drugs, and a federal magistrate judge criticized The Los Angeles Times for faulty reporting.

While dozens of players were named last week in the Mitchell report into the use of performance-enhancing substances in baseball, four others who were not in the Mitchell report -- Sammy Sosa, Pete Incaviglia, Geronimo Berroa and Allen Watson -- are named in one of the affidavits. (Other players were named in the affidavit, but they were also named in the Mitchell report.) The other affidavit, expected to be made public Friday, is believed to name at least one other player who did not appear in the Mitchell report.

The government moved to unseal the affidavits because its criminal case is winding down and because of the release of the Mitchell report, which followed a 20-month investigation by former Senator George J. Mitchell.

The affidavits were filed by Jeffrey J. Novitzky, a special agent for the Internal Revenue Service criminal division, who led the investigations of the Bay Area Laboratory Co-Operative and of Kirk Radomski, a former Mets clubhouse attendant who has admitted selling performance-enhancing drugs from 1995 through 2005. Radomski's home on Long Island and the Phoenix home of the former pitcher Jason Grimsley were searched as part of the Novitzky investigation. Radomski and Grimsley are the subjects of the affidavits.

The Grimsley affidavit was made public in its entirety. It identifies Sosa as having talked about using amphetamines, Incaviglia as having used amphetamines, Berroa as having used steroids and Watson as having used unidentified performance-enhancing drugs. According to Novitzky's sworn statement, Grimsley also accused Jose Canseco, Lenny Dykstra and Glenallen Hill of taking steroids; Chuck Knoblauch of using human growth hormone; David Segui of using performance-enhancing drugs; and Rafael Palmeiro of taking amphetamines.

The contents of the Radomski affidavit will not be available until Friday, Eve Burton, counsel for the Hearst Corp., said Thursday.

Diane J. Humetewa, United States attorney for Arizona, wrote in an unsealing motion that the government no longer needed the names to remain redacted to avoid affecting an ongoing investigation.

The judge who unsealed the Grimsley affidavit had harsh words for The Los Angeles Times, which printed a report in October 2006 headlined "Clemens Is Named in Drug Affidavit." The newspaper said its report was based on two sources, and it stood by the report when it was challenged by the United States attorney.

Edward C. Voss, a United States magistrate judge, wrote in the unsealing order signed Thursday: "A review of the disclosed affidavit proves that the Times never saw the unredacted affidavit. Roger Clemens is not named in the affidavit and Grimsley makes no reference to Roger Clemens in any context. At best, the article is an example of irresponsible reporting. At worst, the 'facts' reported were simply manufactured."

The Times said in a statement: "We acknowledge the inaccuracies of the report and deeply regret the mistake. We plan to run a correction in tomorrow's paper."

The Chicago Tribune ran a version of that story as well.

Meanwhile, the chairman of a House oversight committee has not decided whether to call players to testify at a hearing on performance-enhancing drugs in baseball, his chief of staff said Thursday, contradicting a statement by the ranking minority member that the panel had decided not to call players.

"We haven't ruled out inviting players," the chief of staff, Philip M. Schiliro, said in a telephone interview after consulting Representative Henry Waxman, the California Democrat who chairs the House Committee on Oversight and Government Reform.