Rangers took the lead early on before their Spanish opponents equalised just moments later. Both sides are playing for a place in the next round of the Europa League with the Scottish club needing a win to secure progression.
Rangers have signed Brighton forward Abdallah Sima on a season-long loan. Sima spent last season on-loan at Stoke City. "He has excellent variety in his game," said Gers manager Michael Beale.
Brighton forward Abdallah Sima could be set for a move up north in the coming weeks. The Senegal international, who is only 22, is on the periphery of the Brighton first team.