MLB busted using 2 different baseballs. One "juiced" ball for games and players they wanted to help hit HRs (take a wild guess which race of players got the benefit of juiced balls), and one 'dead' ball for players / teams they didn't want to hit a bunch of HRs. MLB is as rigged as the WWE
Manfred’s era of MLB is all about profit, so veteran reliever Sean Doolittle’s
proposed conspiracy theory isn’t remotely far-fetched: With MLB’s new, highly-lucrative gambling partnerships, using two kinds of baseballs could manipulate sports betting, and tip the scales in a specific direction.
If that were true, it would be appallingly hypocritical for a league famous for the 1919 Black Sox scandal and the lifetime banning of Pete Rose. But with MLB owning Rawlings, it wouldn’t be hard for them to pull off.
There’s another significant element of hypocrisy at play here, as well. In the middle of the season, Manfred cracked down on pitchers for using foreign substances to improve their grip on the baseball. Several pitchers were suspended, others were mocked for their struggles and elevated ERAs after the change.
The situation sent shockwaves through the game, but meanwhile, behind the scenes, the league had been providing two different baseballs without telling the players. The increase in offensive output was a key reason pitchers felt the need to get a better handle on the balls in the first place. In essence, Manfred was punishing pitchers for a problem his office secretly created.
https://fansided.com/2021/11/30/mlb-rob-manfred-2-different-baseballs-report/