During what situation can a player receive a yellow card?

A player can receive a yellow card for committing a minor infraction or engaging in unsporting behavior, which is a key part of maintaining discipline and sportsmanship during a match. Instances that might warrant a yellow card in this category include actions such as delaying the restart of play, arguing with the referee, or reckless challenges that do not result in a more serious foul. The purpose of the yellow card is to caution players and serve as a warning that their behavior is inappropriate or detrimental to the spirit of the game.

In this context, the other situations listed do not typically result in a yellow card being issued. Celebrating a goal is generally encouraged, being substituted usually doesn't have any disciplinary consequence, and wearing improper equipment might result in a player being instructed to change their gear rather than receiving a card. The identification of unsporting behavior is clear and serves as a fundamental aspect of how referees manage the flow and integrity of the game.