FC Barcelona's coach Gerardo 'Tata' Martino from Argentina signals during a Spanish La Liga soccer match against Real Madrid at the Santiago Bernabeu stadium in Madrid, Sunday March 23, 2014. (AP Photo/Paul White)
Real Madrid's Isco, centre, reacts as the referee signals a penalty for FC Barcelona during a Spanish La Liga soccer match at the Santiago Bernabeu stadium in Madrid, Sunday March 23, 2014. (AP Photo/Paul White)
Barcelona's Lionel Messi from Argentina, foreground, controls the ball near to Real's Cristiano Ronaldo, left, during a Spanish La Liga soccer match between Real Madrid and FC Barcelona at the Santiago Bernabeu stadium in Madrid, Spain, Sunday, March 23, 2014. (AP Photo/Andres Kudacki)
Barcelona's Lionel Messi from Argentina, left, celebrates his goal next Real's Cristiano Ronaldo, during a Spanish La Liga soccer match between Real Madrid and FC Barcelona at the Santiago Bernabeu stadium in Madrid, Spain, Sunday, March 23, 2014. (AP Photo/Andres Kudacki)
Real Madrid's coach Carlo Ancelotti, foreground, reacts during a Spanish La Liga soccer match against FC Barcelona at the Santiago Bernabeu stadium in Madrid, Sunday March 23, 2014. (AP Photo/Paul White)
Real Madrid's Sergio Ramos, left disputes a red card shown to him by the referee for a foul on FC Barcelona's Neymar during a Spanish La Liga soccer match at the Santiago Bernabeu stadium in Madrid, Sunday March 23, 2014. (AP Photo/Paul White)
FC Barcelona players celebrate winning at the end of a Spanish La Liga soccer match against Real Madrid at the Santiago Bernabeu stadium in Madrid, Sunday March 23, 2014. (AP Photo/Paul White)
Real Madrid's Cristiano Ronaldo sits between FC Barcelona's Javier Mascherano from Argentina, left, and Gerard Pique during a Spanish La Liga soccer match at the Santiago Bernabeu stadium in Madrid, Sunday March 23, 2014. (AP Photo/Paul White)
Barcelona's Lionel Messi from Argentina, left, celebrates his goal during a Spanish La Liga soccer match between Real Madrid and FC Barcelona at the Santiago Bernabeu stadium in Madrid, Spain, Sunday, March 23, 2014. (AP Photo/Andres Kudacki)
Barcelona's Lionel Messi from Argentina, centre left, scores his goal during a Spanish La Liga soccer match between Real Madrid and FC Barcelona at the Santiago Bernabeu stadium in Madrid, Spain, Sunday, March 23, 2014. (AP Photo/Andres Kudacki)