MLB reportedly used two different baseballs in games in 2021
Rawlings NFHS Official High School Baseballs | Rawlings
MLB standardizes how baseballs are prepped to be put in play
The Baseballs - YouTube
The Baseballs - Hot N Cold (official video) - YouTube
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MLB using different balls? Juiced balls? Here's why everybody is mad
So You Just Crushed A Baseball. Sorry, Your Odds Of A Home Run Are Worse This Year. | FiveThirtyEight
A major-league baseball vs. a Triple-A ball: Can players tell the difference? – Orange County Register