Joe Lemire: How the changeup has changed the game - Sports Illustrated

How the changeup has changed the game

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Chris Tillman's changeup grip, seen here, has helped turn him into an All-Star.

Chris Tillman's changeup grip, seen here, has helped turn him into an All-Star.

Justin Verlander is known for his fastball but his changeup can be just as important to him.

Justin Verlander is known for his fastball but his changeup can be just as important to him.

For now, the changeup is more finishing piece than fundamental, but its impact is undeniable, any way you spin it.