From the bertso derbia off the pitch to events on it, Saturday's showdown means a great deal, not least to two clubs struggling for their best form.
2017 ScheduleAll times ET
Athletic Bilbao president Josu Urrutia hopes goalkeeper Kepa Arrizabalaga will remain at the club beyond next summer amid interest from Real Madrid.
Ronaldo appeared determined to improve a record which has seen him only score two goals in LaLiga this season.
Keylor Navas is not unsettled by reports that Real Madrid are lining up a bid for Athletic Bilbao's Kepa Arrizabalaga in the winter transfer window.
Yeray Alvarez has been given the "all clear" by his club to return to action five months after receiving chemotherapy treatment for testicular cancer.
Valencia kept pace with Spanish leaders Barcelona on Sunday by beating Espanyol 2-0 for an eighth straight league win.
Aritz Aduriz has signed a new contract with Athletic Bilbao, the Basque club have announced.
Manchester United's David De Gea says he has been impressed by how good Athletic Bilbao goalkeeper Kepa Arrizabalaga is.
Athletic Bilbao and Spain goalkeeper Kepa Arrizabalaga says he is aware of rumours linking him with a move to Real Madrid next summer.
Lionel Messi and Paulinho hit the target as Barcelona crept past Athletic Bilbao to maintain their four-point lead in La Liga.
Tests confirmed that Muniain tore his right anterior cruciate ligament late in the game, and the 24-year-old will now undergo surgery.
Athletic Bilbao coach Jose Angel "Cuco" Ziganda has said that defender Yeray Alvarez appears to have recovered from cancer.
Angel Correa and Yannick Carrasco scored second-half goals as Atletico Madrid extended their unbeaten La Liga start to five matches with a 2-1 win.
Marca reported that Madrid could sign the 22-year-old when he becomes a free agent next summer.
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Two goals from Marco Asensio weren't enough as Real Madrid slumped to a 2-2 home draw against Valencia, while a Ganso goal lifted Sevilla to victory.
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