Major League Baseball's proposed HGH testing program contains a loophole that could allow use of the drug from opening day until the end of the World Series. For the first year at least, MLB will conduct more than 1,000 HGH tests, but only in spring training and then again in the offseason. There will be no testing during the 162-game regular season and playoffs, unless league officials can establish "reasonable cause" to target a player, such as obtaining evidence he placed an order for the substance.