hahaha. I gotta laugh.
Close lines and shit like that are fake. Sleeper holds or Rear naked Chokes work if you do it right... such as cutting off the blood in your neck or forearm to the wind pipe (more of a pain submission).
Fake Pro Wrestling is based of Catch Wrestling... where shit like toe holds and submissions worked. Greco Roman wrestling is all upper body stuff, suplexes and body slams.
I grew up on Pro Wrestling, Ric Flair is hella old, but a Legend... so for some dude to beat him up is kinda messed up.
If you take MMA classes, you know what works. But if you are into grappling specifics, you can take individual sports, wrestling, brazillian jiu jitsu, judo, sambo... Its what I do. That way I can do mma rules or judo rules or sambo rules for specific tournaments.