It is interference by a batter or runner when - (a) the batter hinders the catcher in an attempt to field the ball; (b) the batter intentionally deflects the course of a foul ball in any manner; (c) …

Rules 5.05(b)(3), 5.06(b)(3)(D), 6.01(g): Under Official Baseball Rule 5.05(b)(3), if catcher’s interference is called with a play in progress, the umpire will allow the play to continue because the manager may elect to take the play—unless …

2-21-1   Offensive interference is an act (physical or verbal) by the team at bat: which interferes with, obstructs, impedes, hinders or confuses any fielder attempting to make a play; or when a runner creates malicious contact …