Of course, he might not have to: if Alcaraz doesn’t play better than he did yesterday, he’ll be making no finals. Except we know he’s almost certain to improve, the win over Fognini simply reminding us how brilliant he is at finding a way to impose his will. Which is to say that Sinner will have seen what happened, tantalised himself with hope and, now it’s been extinguished, must ensure he’s as focused as he needs to be.