The La Liga refereeing controversy is one of the most heated topics in the football world, and it has been at the forefront of discussions for several seasons now. The refereeing decisions made during the season 2021 have sparked outrage among fans and critics alike.

One of the most controversial decisions was that of the referee in the game between Real Madrid and Barcelona on October 18, 2021. The match ended in a draw, but the decision to award a penalty to Barcelona for offside was met with widespread criticism. The video evidence suggested that the ball had crossed the line before the referee's whistle blew, which meant that Barcelona should not have received a penalty.

Another major controversy involved the decision by the referee to send off Sergio Ramos for a foul on Lionel Messi in the final minutes of the game between Atletico Madrid and Barcelona on March 4, 2021. The referee's decision to dismiss Ramos for a second yellow card despite the fact that he only received one in the first half was widely criticized as being harsh and unfair.

These two incidents were just a few examples of the many controversies that have arisen in La Liga this season. Other notable decisions include the red card given to Diego Costa for a headbutt on Dani Alves in the game between Atlético Madrid and Valencia on January 17, 2021, and the decision by the referee to allow a goal from a free-kick awarded to Real Madrid against Espanyol on February 15, 2021.

Overall, the refereeing decisions made during the season 2021 have generated a lot of debate and criticism within the football community. It remains to be seen whether the situation will improve or worsen in future seasons.