The teams went inside to the locker rooms to wait out storm. A group of spectators who had been watching the game, took cover under a tree. The tree was struck. A 16 year old boy was killed and 10 others were injured. Lightning will be attracted to the tallest object.
Tall trees are a prime example.
Sports fields are a high risk area. The tallest object may be the players, or goal posts. Lightning may strike both players and goal posts at once. Metal bleachers, tall lights for night-time play, and metal fences around ballfields are all at risk of being struck. Even the dugout are not safe.