Jason Heyward made big changes to his swing. Here are the

Jason Heyward's swing is a 'work in progress.' He's still a safe bet to make Dodgers roster

Early Video of Jason Heyward's Apparent Swing Changes - Bleacher Nation

Surviving the spring leads to fruitful Opening Day, by Ron Gutterman

Yoenis Cespedes vs. Jason Heyward illustrates the debate about the value of advanced analytics in baseball – New York Daily News

Broken swing: Jason Heyward trying to rebuild his approach - The Athletic

Jason Heyward, Chicago Cubs get to Josh Hader, Milwaukee Brewers - ESPN

How Jason Heyward Is Fixing His Swing – Chicago Magazine

Why Cubs have so much respect for Jason Heyward and believe his strong April will carry over – NBC Sports Chicago

Great Longer Video of Jason Heyward Working on His Swing - Bleacher Nation

Fixing Jason Heyward's Swing Is Simple - Hitting with Torque