People are getting bent out of shape over nothing. There are literally 100+ baseballs used in an average game. I doubt even the most clever cheater could hope to doctor more than a couple dozen balls. From the useless Internet trivia archives:
"Ten to twelve dozen balls are delivered to the umpires by the home team prior to each game. Before the game, the sheen is rubbed off the balls with a special mud MLB purchases. These balls are to be used for the game. It's not unusual for 100+ of these balls to be used in the game. On a velvety cool Friday evening at PNC Park, the Pirates and Brewers used 104 balls, which is about 15 fewer than in a typical home game, according to Pirates equipment manager Roger Wilson."
Ok, it looks like the MLB is cheating by rubbing off the sheen with a special mud.
"Ten to twelve dozen balls are delivered to the umpires by the home team prior to each game. Before the game, the sheen is rubbed off the balls with a special mud MLB purchases. These balls are to be used for the game. It's not unusual for 100+ of these balls to be used in the game. On a velvety cool Friday evening at PNC Park, the Pirates and Brewers used 104 balls, which is about 15 fewer than in a typical home game, according to Pirates equipment manager Roger Wilson."
Ok, it looks like the MLB is cheating by rubbing off the sheen with a special mud.