Major League Baseball has announced new rules to crack down on cheating and terrorism, as the league will now inspect pitchers for water bottles, metal objects and toothpaste larger than 3.4 ounces in addition to sticky substances.

Umpires began checking pitchers for illegal foreign substances such as Spider Tack and sunscreen earlier this week, but have decided to expand the list. Now, pitchers are not allowed to carry water bottles, any metal objects in their pockets and cannot have toothpaste or aerosols larger than 3.4 ounces. Additionally, they must place all electronic devises larger than a cell phone in its own bin.

The MLB Players Association is reportedly frustrated with these changes, as well as the addition of metal detectors on the field. The league is adamant in keeping the rules in place, though, and is reminding fans and players alike “if you see something, say something.”