This is just a guess on my part
Could it be that Rav Scheinberg told the boys it it was a Se’udas Hoda’ah for the “Yankees” in order to get them to come to this Seuda for whatever reason (Someetimes I know Godols have used “excuses” like this to prevent averiahs and engage people.)
he did not want to talk about it because he wasnt endorsing the game and didnt want to seem like he did , but didnt want to reveal his plan either