The Iranian wrestler was winning the battle of underhook vs whizzer. He put lots of pressure on that whizzer shoulder. This causes the whizzer to loosen a bit, making limp arm more possible. Some things the opponent might have done to counter single leg to underhook Tighten up whizzer to help win battle Hip to hip pressure (hip in) And elevation of opponents near leg with a hip toss motion And as limp arm is executed, grab that arm with a two on one Russian arm tie to possibly get a stalemate I was never near as good a wrestler as either one of them. And my suggestions might not be feasible in top competition I’ve lost that defensive whizzer position more times than I care to remember. Great video. Iranian wrestlers are among best in world. Brave fighters Thanks