That is a real shitty way to lose.... Its the sort of sloppy thing you would see at a amateur mma event.
I remember Pat Miletich losing a bit like this, only kneeling against the cage.
I believe that is a neck crank from a scarf hold. Not even remotely similar to the choke that Carlos Newton put on Pat Militich.
Don’t pick a fight with an old man. If he is too old to fight, he’ll just kill you.