Racing Santander and Real Sociedad remain unmoved in the La Liga table after their goalless draw at El Sardinero.
Antoine Griezmann could have given the visitors an early lead, but his shot crashed back off the post after eight minutes.
The striker nearly scored five minutes later when he flashed his shot wide at the back post following Imanol Agirretxe's cross.
Racing's best opportunity to open the scoring came on 30 minutes when Adrian Morales's shot was smothered by goalkeeper Claudio Bravo.
Sociedad were reduced to 10 men after the restart as Inigo Martinez was shown a straight red card for a lunge on Papakouli Diop.
Alvaro Soberon almost made the breakthrough in unusual circumstances on 64 minutes when his cross came back off the crossbar.
Substitute Diego Ifran nearly made an instant impact, but his shot was saved in the final 10 minutes.
Santander are 19th after the draw, while Sociedad stay 15th.
