Jose Mourinho proved his ability to succeed with different clubs, and he was one of the few coaches who won the league title in a number of major leagues.

Mourinho recently celebrated leading the thousandth game of his career, which, in addition to successes and trophies, witnessed a series of failures and mistakes.

A report by SportsKeeda chose the 5 most important mistakes of Mourinho during his coaching career.

1- conspiracy theory

In many cases of his career, Mourinho found a way to shift the blame aimed at his team, and his criticism of referees and management was a constant in his press conferences, but the most prominent justification was his accusation of UEFA of discrimination in favor of Barcelona because of the presence of the "UNICEF" logo on the Catalan club's shirt.

During his first term at Chelsea, Mourinho was fined 8,900 euros for accusing Swedish referee Andreas Frisk of conspiring with former Barcelona coach Frank Rijkaard.

2- Old tactics

"Bus Corner" is a term that symbolizes the players' block in the defense, and it was mainly associated with Mourinho's plans during important matches.

At Inter Milan, the Portuguese coach's pragmatism was praised, which allowed him to win the Champions League, but during his time in England and Spain, this plan was described as contrary to the principle of playing beautiful football, and criticized for limiting the creative abilities of Cristiano Ronaldo in Real Madrid, and Eden Hazard at Chelsea, because of their obligation to defensive roles.

In an era when attractive offensive football has become a collective demand, Mourinho has stuck to his defensive style of neutralizing his opponents defensively and trying to score goals from counter-attacks.

3- Conflicts and failure to defend the league title

After winning the Premier League title with Chelsea in the 2014-2015 season, Mourinho entered into conflicts with various parties, at a stage in which tension and turbulence increased in the way he managed the team.

The Portuguese coach was very critical not only of the referees;

But also for his players, he went so far as to quarrel with club doctor Eva Carneiro over medical intervention decisions on the field during a match that ended in a draw with Swansea City.

#OnThisDay in 2015, Chelsea drew 2-2 with Swansea, but more importantly, it was the beginning of the end of Jose Mourinho at #CFC đź‘€

He entered a touchline row with doctor Eva Carneiro which eventually led to a law suit and them both leaving the club 🤯 pic.twitter.com/hDR7M9isWN

— Managerial Mindset (@ManagerialMinds) August 8, 2019

By December 2015, Chelsea was 16th in the Premier League standings, one point behind the relegation centers, and 20 points from leaders Leicester City, which prompted club owner Roman Abramovich to decide to dispense with Mourinho's services for the second time after his first experience between 2004 and 2007.

4- Disagreements with players

Mourinho's style of managing and motivating the players earned him the respect of many stars, but sometimes things turned into disagreements with other stars who did not agree with the Portuguese coach's requests and his way of working.

At Real Madrid, for example, Mourinho got into a dispute with goalkeeper and club legend Iker Casillas and removed him from the starting lineup after signing Diego Lopez.

Even defenders Sergio Ramos and Pepe were believed to have had a strained relationship with Mourinho, and during his second spell at Chelsea there were growing reports in the last months leading up to his dismissal of quarrels in the dressing room and widespread dissatisfaction and anger among the players.

In Manchester United, Mourinho's differences with his players increased and he entered into a conflict with Frenchman Paul Pogba, and made harsh comments against defender Luke Shaw and criticized his physical fitness and "football mentality", which doubled the tension within the team and prompted the management to dispense with his services.

5- Failure to deal with young people

Mourinho always calls for a competitive team by hiring names that he sees as capable of leading his team to crowning titles.

His focus on getting players ready for immediate results has resulted in many promising youngsters failing to get time to play regularly, prompting them to look elsewhere.

And through his journey with various clubs, Mourinho lost a lot of talented players, such as Mohamed Salah, Romelu Lukaku and Kevin De Bruyne, the trio whose talent exploded after leaving the leadership of the Portuguese coach in Chelsea.