This is the moment that Chelsea and most notably here Michael Ballack finally lost it with Norwegian referee Tom Henning Ovrebo.

这一刻，切尔西对挪威裁判汤姆·亨宁·奥夫雷伯失去理智，巴拉克更是首当其冲。

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The central defender also condemned the decision to select Ovrebo for such a high-profile tie.

BBC: Drogba rages at ref for Euro exit

For the Norwegian referee Ovrebo, this is not the first time his decision-making has attracted harsh criticism.

CNN: Chelsea debate: Bad decisions or bad losers?

Police in Ovrebo's home city of Oslo said they would be vigilant over any threats made against the referee.

BBC: Drogba rages at ref for Euro exit