[ It's a very volleyball mindset on Atsumu's part, but he does at least recognize what's happening here has bigger stakes than a match. The question that D asks has Atsumu immediately freezing in spot, walking no further as he stares at the other man, face serious. ]

You know what a tie in this case probably means, right? It ain't gonna be like we both get what we want if the resources and power are that limited. It's gonna mean we both lose.

[ He's assuming. He can't know that for sure, but he also can't believe for a second that two cities full of people would be fighting tooth and nail to win if it was possible for both of them to win. ]