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BaseballSportsMajor League BaseballNorthwestern UniversityCarlos BeltranNew York Mets
Ocular enhancement pitching machines, like the one Dr. Michael Bonaventura, above, uses at Northwestern University in Evanston, Ill., have been so popular that players such as the New York Mets’ Carlos Beltran have written them into their contracts. Charles Osgood / Chicago Tribune
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