Ziganda reserved players such as Mikel Rico, Markel Susaeta, Raul Garcia, Ander Iturraspe and Mikel Balenziaga out in midweek and they will all return against Madrid, as will veteran striker Aritz Aduriz.
The 23-year-old stopper has a burgeoning reputation and is David de Gea's understudy in the Spanish national team.
Real Madrid president Florentino Perez has given his backing to Zinedine Zidane despite Los Blancos' disappointing start to the season.
Real Madrid's Sergio Ramos set a new record for red cards in La Liga after receiving his marching orders for the 19th time in the 0-0 draw with Athletic Bilbao December 2.
The 14 saves made by de Gea equals the record jointly held by Tim Krul, set in a game for Newcastle United against Tottenham in November 2013, and Vito Mannone - who was playing for Sunderland against Chelsea in April 2014 - since Opta began collecting data in the 2003-04 Premier League season. "Last season we won games in the last minute and now we can't seem to find the net".
Madrid have scored just one goal and taken two points from their last three away games in La Liga, and Zidane agreed with a suggestion that a lack of goal scoring was main reason for his team being in fourth spot with their fewest points at this stage since 2008-09.
"It would do us a lot of good, ahead of the Clasico".
Madrid striker Karim Benzema struck a post and Keylor Navas saved well from Athletic forward Inaki Williams during an even first half, and although Madrid had most of the ball after the break and pushed Athletic deeper and deeper Cristiano Ronaldo and company were unable to really test home goalkeeper Kepa Arrizabalaga over the 90 minutes.
"We have a lot of personality and have some different opinions, but we're pulling in the same direction".
"We are a bit back, but this is very long". He has a clause in his contract allowing him to leave for 20 million euros in January, and Real are prepared to pay it.
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