Judgment Day has arrived for baseball's steroids era.

The Associated Press learned the Mitchell Report, to be released today, exposes a "serious drug culture within baseball, from top to bottom." It says MVPs and All-Stars are involved and calls for beefed-up testing by an outside agency to clean up the game.

The report by former Senate Majority Leader George Mitchell will include names of 60 to 80 players linked to performance-enhancing substances and plenty more information that exposes "deep problems" afflicting the sport. Two sources with knowledge of the findings tell the AP the report will not address amphetamines.

Mitchell, a Boston Red Sox director, plans to release his report at 2 p.m. during a Manhattan news conference. Baseball commissioner Bud Selig was to hold his own news conference a few blocks away 2 1/2 hours later.

Mitchell was hired by Selig in March 2006 after the publication of "Game of Shadows," a book by two San Francisco Chronicle reporters about slugger Barry Bonds' alleged steroid use.