He just happened to be walking by as some golfer was getting ready to swing, and offered a fun play-by-play announcement of how he was doing.
Source: Bro Bible
Seems like almost every game you go to nowadays you'll find some drunk idiot running onto the field. Unless you're at the game, most of the time you never know it happened on TV. This is not the case with this one. This time, the announcer decided to give the greatest play-by-play ever.