On February 14, 2016, Luis Enrique's Barcelona, ??led by Messi, Luis Suárez and Neymar, beat Celta (6-1). Celta's only goal came from a penalty kick. John Guidetti scored their goal. It didn't seem historic at that moment, but later it became. From that moment until their visit to Las Palmas on March 1, 2018, that is, 746 days later, 78 games later, no other penalty was awarded against Barcelona.
In that period they won two Leagues and in that same period they paid 1.4 million to a company owned by former referee José María Enríquez Negreira, vice president of the Technical Committee of Referees. A gray period, now part of an investigation by the Prosecutor's Office, which keeps other relevant data. An example: in the three seasons investigated, 2015-2016, 2016-2017 and 2017-2018, against Barcelona four penalties were given and against Real Madrid, 16. Another example: in the 2015-2016 season, the Barça team broke the historical record of penalties in favor with 19, including the three that were awarded in just 12 minutes in a match against Sporting.
And one last example: in that period there were hardly any players expelled from Barcelona. Since Mascherano's expulsion for insulting an assistant against Eibar on October 25, 2015, they spent a year and a half without any red cards until Neymar broke the record on April 8, 2017 against Málaga with a double yellow, but it was also a record: 59 games ending with 11 players.
For any madridista, this information was not surprising at all. We were witnessing how the cules were always favoured in that period, in el clasicos in special, and in LaLiga in general. This comes only to prove that most of the trophies they won in Spain were unfair and always with the help of the referees. Hopefully, one day they will start to speak about their continental scandals also.