How one tiny change to the baseball may have led to both the home run surge and the rise in pitcher blisters - The Athletic
The Physics of Cheating in Baseball, Science
Magic mud used by every Major League Baseball team is harvested in southern New Jersey - 6abc Philadelphia
MLB to alter baseballs for 2021 season
Bipartisan state coalition backs challenge to MLB's antitrust immunity
The game stays the same even as baseballs change
Report: MLB keeping controversial extra-innings rule permanently – NBC Sports Chicago
The 9 best baseball options: From little league to the pros
MLB has a muddy balls problem, a breakdown
Rawlings Puts the Ball in Baseball
MLB standardizes how baseballs are prepped to be put in play
MLB making changes to the baseball for 2021 season - Halos Heaven
MLB using different balls? Juiced balls? Here's why everybody is mad