The coacher stands still and the first baseman collides with the coacher causing the first baseman to drop the ball. Player in starting line-up is replaced by substitute in bottom of second inning. Another substitute replaces the first substitute at start of third inning. Batter hits to third baseman who threw wild to first in attempt to retire the batter. Ball hits the coacher and bounds into foul territory.
Runner advances to third.
Rule 7.11. 2. He cannot re-enter the game.