Why wasn’t Van Persie sent off against Man United?

According to the laws of the game, shouldn't Robin Van Persie have been sent off against Manchester United in Arsenal's 2-1 loss on Sunday? I know when it comes to yellow and red cards it's often pretty hard to keep track of all of football's strange rules. But it's widely believed that an automatic yellow card is to be shown to any player who lifts his team shirt to reveal a printed message on a tee-shirt below.

Read the full article at Arsenal Insider.

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