Atletico Madrid boss Diego Simeone has revealed that Real Madrid's recent complaints about referee Alberto Undiano made him "laugh a lot".
Cristiano Ronaldo and Sergio Ramos have both criticised Undiano in recent days following Madrid's 4-3 defeat to Barcelona in El Clasico at the weekend.
However, Simeone has laughed off the complaints from Atletico's capital rivals.
"The allegations made by Madrid made me laugh a lot," Simeone told reporters at a press conference.
Atletico currently top La Liga due to their superior head-to-head record over Los Blancos.
