I don't think both parties handled the situation well TBH. On one hand, Kepa was playing in his first final and had the chance to be the hero in the shootout. If he was okay to carry on, why couldn't Sarri just let him carry on as per normal? Why did he have to throw a tantrum? If Sarri had planned the Caballero sub pre-match for the shootout situation, then shouldn't that have been communicated earlier (unless of course Kepa decided to say fuck it at the last minute)? On the other hand though, Kepa should gone off or at the very least, went and talked with Sarri on the sub instead of letting it play out as it did. The lack of order in the final minutes there sums up this club at the moment!