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J.D. Martinez and the art and science of the swing

It isn’t supposed to work this way. Players aren’t supposed to be able to hit with power in the way Red Sox slugger J.D. Martinez is.

There are other players in the big leagues who can hit opposite-field homers. But no one does it with the frequency, and on the types of pitches, that Martinez does.

His eight opposite-field homers are three more than anyone else in the big leagues. His three opposite-field homers on fastballs that are either on the inner third of the plate – or even inside and off of it – match the total of every other righthanded hitter in the big leagues.