Angels pitcher Matt Shoemaker took a line drive to the front of his head. The sound off of his head is pretty loud. He appeared to be a dazed and had to have a towel placed on his head where the ball struck him, presumably to put pressure on a bleeding wound.
You hate to see this thing happen, but time and time again the pitchers are not in position to field after delivering a pitch. Not that it will completely prevent this from happening, but it will give the pitcher a fighting chance.