RulesMLB Umpire Manual
Ball Going Into Player’s Uniform
Rules 5.01(b), 5.06(c)(7), 5.06(c)(7) Comment: If a batted or thrown ball inadvertently goes inside a player or coach’s uniform, lodges in the catcher’s face mask or paraphernalia, or is intentionally placed inside a player’s uniform (e.g., in a pants pocket), the umpire shall call “Time.” The umpire will, using common sense and fair play, place…
RulesMLB
4.01 Umpire Duties
Before the game begins the umpire shall: (a) Require strict observance of all rules governing implements of play and equipment of players; (b) Be sure that all playing lines (heavy lines on Appendices No. 1 and No. 2) are marked with lime, chalk or other white material easily distinguishable from the ground or grass; (c)…