Los Blancos had already secured their place in the last 16, though it was possible that Roma could pip them to top spot if they overcame Viktoria Plzen – though the Czech side pulled off a shock of their own to qualify for the Europa League.
Despite needing a result, Real gave a lacklustre display and conceded two quick-fire goals at the end of the first half before Arnor Sigurdsson scored a third after the restart to secure a historic win.
AS: Isco telling the fans 'what do you want?' after missing a chance & the following whistles.
I guess this throws the 'Bernabeu fans only favor Spanish players' conspiracy out the window. pic.twitter.com/Ra58cIxRx9
— M•A•J (@Ultra_Suristic) December 12, 2018
Real have endured a difficult season this year, replacing manager Julen Lopetegui, and fans turned on their players on yet another humiliating night.
Having wasted several guilt-edged chances, Isco thought he had won a corner – though the referee disagreed – and was whistled by fans, to which he shouted: What do you want?
Club officials claimed afterwards that he was simply claiming for the corner, though his outburst prompted more jeering from the home fans.
Iscos gesture? I suspect that he was claiming a corner, said Real director Emilio Butragueno afterwards.
We have to be united, especially when the situation is adverse. Whistling a player weakens us. We arent used to losing at home, especially in the Champions League. We didnt deserve this scoreline.
More: Real Madrid