Jason Heyward of Chicago Cubs says he left St. Louis Cardinals
Cubs Sign Jason Heyward - MLB Trade Rumors
Cubs players, staff explain what made Jason Heyward so special inside the clubhouse - Marquee Sports Network
Jason Heyward reshapes Cards-Cubs rivalry with one decision
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Jason Heyward's lasting impact with the Chicago Cubs goes beyond his numbers — and big contract
Cubs: Jason Heyward's time in Chicago might not be over after all
At what point should the Chicago Cubs move on from Jason Heyward?
It Finally Looks Like the Cubs' Turn - The New York Times
A Cubs Fan Processes Jason Heyward's Tenure in Chicago
Contreras, Happ stay with Cubs after deadline passes
Report: Cubs sign star outfielder Jason Heyward away from Cardinals
Chicago Cubs reach agreement with former St. Louis Cardinals outfielder Jason Heyward on eight-year deal - Los Angeles Times