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While playing football, a dangerous opponent can become not only a footballer from the opposing team, but also... the referee. This was proven by Turin's goalkeeper Alberto Aquilani, whom the referee accidentally sent a knockdown.
A rare incident happened during the Sunday match against "Sampdoria" when the referee accidentally hit the goalkeeper who was running after him.
Fortunately, no serious injuries occurred - Aquilani continued the game.
Interestingly, in another match that day between "Bologna" and "Lazio," forward Mauro Zarate [link="http://eurofootball.com/index.php?page=news&id=22530"]hit[/link] the assistant referee.
Aquilani finds himself "knocked down."