Major League Baseball has made a monumental move this weekend involving instant replay. Commissioner Bud Selig has announced that the league will use instant replay, not for judging whether balls are home runs or not, but for catching suspected steroid users.

The league began experimenting with the new replay system using players that are now retired. The way it works is they go back and review film of players early in their career. Then, they view tapes from later in that players career. If the player looks like a before and after picture for a gym, he immediately is accused of using steroids.

Take Lenny Dykstra for example. When the Mets won the World Series, Dykstra was 110 pounds. Several years later, Dykstra looked like the Michelin Man when playing for the Philadelphia Phillies. Through instant replay, the league has determined that Dykstra was a steroid user.

It has not yet been determined how the league will combat the problem of players staying ahead of the technology game. Already, it has been reported that several players have found supplements that make them look skinnier on television.

Many players have asked their teams to allow them to wear black uniforms at all times. This would create a slimming effect for the cameras. While Major League Baseball's plan is not full proof, it is a start to the instant replay age.

The league has used the new system on Saturday afternoon at Shea Stadium, but the only person that looks to have gained weight in their before and after videos is Willie Randolph. The league claims that weight gain is from getting older and not from steroids.

By Monday, the new system should be in place in every Major League ballpark.