I am currently watching the UEFA EURO 2016 matches and I saw the referees checking the shoes of the players. What are they looking for?
To make sure none of the studs are sharp or broken as this can cause a nasty injury. i think the ref checks the starting players studs in the changing room before the game.
Football goalies didn't have to wear different colored shirts from their teammates until 1913.
What happened after that date they need to were colored T-Shirt?