Tyres were back in the news for the wrong reasons after second practice at Spa, with sudden deflations of the right-rears on the cars of Sebastian Vettel and Fernando Alonso.
In both cases by the time the tyre punctured they were at Stavelot, where that tyre would be the unloaded one - the assumption being that if the puncture was induced by a structural failure in the tyre, the damage would have been done in the preceding fast left-hander of Pouhon.
At the time of writing Pirelli was still trying to determine the cause, but it had pictures showing two piercing holes in the tread of Alonso's tyre and a circumferential groove of damage in that of Vettel's.
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