MADRID (AFP) - A Real Betis fan alleged to have thrown a bottle which knocked Sevilla coach Juande Ramos unconcious during a recent Spanish Cup derby was arrested by police, Spanish media said Wednesday.

The 30-year-old man, who has denied the allegation, was reportedly identified from television pictures of the match and several witness statements.

Ramos was knocked unconscious by a bottle thrown from the crowd during the quarterfinal Cup tie against Real Betis after Sevilla had taken a 1-0 lead on a 56th-minute goal by Frederic Kanoute.

He stumbled on the pitch before falling to the ground and was then carried off on a stretcher but regained consciousness minutes later although the game was called off.

Real Betis were recently handed a three-match stadium ban, and will also have to replay the remaining 33 minutes of the tie return leg behind closed doors at first division side Getafe, who are based in the Madrid suburbs, Spain's football competition committee ruled.

The body also decreed that disciplinary proceedings should be launched against Jose Maria del Nido and Pepe Leon, chairmen of Sevilla and Betis respectively, whom they accused of whipping up longstanding bad feeling between the two clubs beforehand.