This week, Dodgers manager Dave Roberts confirmed he has seen an increase of foreign substances to manipulate pitch movement in recent years. But I do think that at some point, baseball will come up with something unilaterally [to police pitchers]. But, yeah, I’ve seen an increase.”Asked if he’s had conversations or plans to have conversations about foreign substances with his pitchers, Roberts said no. It wasn’t until Wednesday, when umpire Joe West ordered Gallegos to change his cap, that any rule regarding foreign substances was enforced during a game. It’s just a matter of when and what Major League Baseball does about it.

Source: Los Angeles Times May 27, 2021 15:56 UTC