A pickoff from the pitcher gets by F3 and rolls through the coach's box and towards the dugout. F3, in his attempt to chase down the ball, runs into the first base coach who made no attempt to avoid the fielder. At the time of the contact, the coach had both feet entirely inside the lines of the coach's box. R1 and R3 advanced on the wild throw.
a. Call interference and leave the ball alive allowing for a possible play on R3 at the plate.
b. Call "time" and call "that's interference," declare R1 out and return R3 to third base.
c. Interference may be called only if the umpire decides that the base coach did something intentional to disrupt the play of the first baseman.
d. “That is nothing," it is incidental contact as the coach is entitled to the protection of the coach's box.
