Major League Baseball is banning team officials from watching amateur players or collecting data on them for a monthslong period over the winter, warning executives that "the amateur baseball calendar is putting young players at dramatic risk of future injury," according to a memo obtained by ESPN.

In a seven-page document distributed to high-ranking personnel with all 30 MLB teams, the league said it hoped its Amateur Recovery Period Policy -- which covers high school juniors and seniors from Oct. 15 to Jan. 15 and college players from Nov. 15 to Jan. 15 -- will "alleviate the pressure on young players to forego rest and recovery, curb overuse, and keep players healthier as they strive for a future in professional baseball."

During the down period, team employees will be barred from see

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