Atletico Madrid, who lost their unbeaten home record in a 2-0 defeat by 15th-placed Espanyol, are second on 75 but have played one game more.
Barcelona's improvisation skills cannot be questioned as Gerard Pique grabbed the microphone and told the crowd that they would do their own.
The incident Zidane was referring to happened before the Clasico on December 23 when, having returned from the United Arab Emirates as Club World Cup winners, Barcelona elected not to give Real a guard of honour as is traditional in Spain.
"It would be something incredible to be able to get it", he said.
"Always the football is more important than the "controversies" people want to make". You've got to win the Champions League to play in it and we're both in the Champions League.
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Only on Saturday afternoon was the White House assured she would not withdraw , the Post quoted the officials as saying. An administration official also told CBS News that her nomination remains on track.
"I wish all Clasicos had a decaffeinated flavour because of the fact we were already champions", said Valverde. One turn away from Bale that drew a foul was a reminder of his qualities, and it was slightly surprising that he was sacrificed in the second half to a standing ovation when Ernesto Valverde wanted to add another defensive player.
It will certainly be the last "clasico" for Andres Iniesta as a player while Gareth Bale may also wave goodbye to this fixture, with the Welshman expected to consider his future at Real in the summer. "We must congratulate Barcelona".
Barca's domestic double, complete with their seventh league title in 10 years and their fourth straight Copa del Rey, will take on extra significance if they can beat Madrid and go on to end the season without losing a league game.
This meeting of La Liga's two most glamorous clubs will have minimal affect on the table, given Barca are unassailable and Real, now concentrating on the Champions League final, are safe inside the top four. Dani Carvajal also remains out with a hamstring problem. Zidane has been playing Bale, and resting key players, in La Liga matches but he is not likely to field a weakened team this weekend.
"We wanted to win it, Sergi's sending off damaged us, especially against a team like Real Madrid. I'm convinced of that".