FC Barcelona legend Andres Iniesta recently discussed El Clasicos between Real Madrid and the Catalan giants when Jose Mourinho was at Los Blancos, and criticised the Portuguese tactician for bringing hate to the fixture.
Mourinho was in charge of Real between 2010 and 2013, a time in which the derbies between the two Spanish giants became more heated than perhaps ever seen before.
With Guardiola in the Barca dugout and Mourinho on the other side, tensions often boiled over, such as when the Portuguese boss poked Tito Vilanova in the eye during a sideline scuffle in 2011.
Iniesta believes it was Mourinho who was responsible for those altercations, claiming that he caused so much trouble between the Real and Barca players that it affected them when they met up for international duty.
"You don't have to be for Barcelona or Real Madrid to know that the situation was unpleasant," he told La Sexta.
"And the key component in that story was Mourinho. Whoever doesn't want to see that, is radical.
"You didn't see the rivalry that always existed before, it went beyond that, you saw hate. That atmosphere developed and it was unbearable.
"The Barca-Madrid tension caused by Mourinho did much damage to the national team (Spain) and the teammates."
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