After an entertaining, if not too thrilling, first half at Old Trafford, Manchester United looked to be in full control of their Champions League tie against Real Madrid. The game shifted their way even further when, three minutes after the restart, Ramos conceded an own goal to put United 1 - 0 ahead.
However, in the 55th minute, the United faithful were shocked into silence after the referee's appauling decision to dismiss Nani. Turkish Cuneyt Cakir sent Nani off for dangerous play after the winger's high foot caught Arbeloa.
Outrage and shock followed- many players, both Real and United, could not believe the decision, Ferguson made his frustrations known to the fourth official and the footballing community took to Twitter to spell out their dismay at the decision.
The general consensus is that Nani certainly fouled Arbeloa, but it was not intentional and the challenge warranted only a yellow card.
There was one lone voice that did think Nani's actions deserved a straight red. Manchester United legend and ITV-pundit, Roy Keane backed the referee's decision to send of the United player. The Irishman explained that he thought the challenge was dangerous and could have caused injury to Arbeloa, thus it warranted a red card.
Twitter users around the planet voiced their opinion on Keane and his own opinion. Manchester United fans on the microblogging site claimed they had lost respect for their former skipper.
In stark contrast to Keane's views, his ex-Manager Sir Alex Ferguson was too 'distraught' about the decision that he refused to do any post-match interviews. Instead he sent assistant manager Mike Phelan out to the press conference that followed the game.
Whether you believe it to a red or not, you can not deny the dramatic effect the decision had on the game.