How can i translate these two words?

It's word from MMA/Boij Bez Pravil

Submission is something you would make your opponent to give up by tapping out.

Takedown- something grapplers would do to get a average.

I couldn't find these two word so it fits in a sport, Submission are also a word you use in contracts and so on.

And perhaps the word "Grappler" to, like Karelin was a dangerous grappler.

I would like to know the Sub and Verb "Takedown".