Stoppage period is still part of the two halves in regulation time while extra time is an additional 30-minute period after the match. Football extra time is divided into two 15-minute halves. It is used to decide the winner of a game if the competitors are still tied at the end of regulation.
During the World Cup, the referees sprayed something on the ground. It looked like it was white paint, but it was foamy. It was right before a free-kick on goal.
What was the stuff they sprayed on the ground?
