F1 teams surprised by FIA’s Spa shootout tyre call

It obliged Aston Martin’s Lance Stroll to switch from intermediates to medium rather than soft tyres on a drying track, with the Canadian subsequently crashing heavily on his final lap.

Under sprint shootout rules, drivers are obliged to use medium tyres in SQ1 and SQ2, then softs in SQ3.

However the rules also state that if the track is declared wet by the FIA those rules won’t apply, and drivers can use any set of dry tyres through the…