Video: Justin Thomas Absolutely Drills A Fan With His Tee Shot

The fan turnout at this week's PGA Championship at Bellerive Country Club in St. Louis, Mo. has been outstanding. Golfers have been raving at the crowds all weekend.

Sunday, of course, has provided us with some massive crowds.

Unfortunately, one of these fans just got drilled in the head with a ball off the tee of Justin Thomas.

Here's video:

That was tough to watch.

The fan appeared to be bleeding, but hopefully, it's nothing too serious.

The PGA Championship is being televised on CBS.