Petway nails threes to death metal. Seriously.
This article mentions that it probably wasn't even his best play of the season because he was unblocked. It also marvels a bit at how it follows Clowney around now.
I don't think it was the best play of the year, but hey, it's the ESPYs. And it looked big. At least Vincent could laugh it off (and shake it off without injury) afterwards.