KANSAS CITY, MO (AP) – Major League Baseball could start in-season testing for human growth hormone next year.

Players were given a blood test for HGH during spring training as part of the labor contract that was agreed to in November, which allows blood testing during the offseason and spring training, and if there is reasonable cause.

Union head Michael Weiner, speaking to the Baseball Writers’ Association of America before Tuesday night’s All-Star game, said players were starting to discuss whether to expand testing to the regular season in 2013.

Says Weiner: “There’s at least a possibility that we could have in-season testing of some form as soon as next year.”

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