Check out this sequence from his fight, a very slick transition from a takedown attempt to back control performed by Bibiano. Pay close attention to where Bibiano's head is in every photo.
2) Here you can see Bibiano do just that...Steps back and away and begins driving his shoulder and head down while pulling in on the leg to get it lifted in the air. There are different variations on the grip that Bibiano has on his leg, what he has here isn't what I would call ideal but you can't always get everything perfect in a fight.
4) Otsuka's energy is leaning forward and Bibiano's head is on the outside. This is a bad combination for Otsuka because his back is already exposed. Take note that Otsuka's leg in still in between Bibiano's legs.
5) Bibianos hustles to the back and Otsuka is low on options. Keep in mind that this whole sequence happens very quickly. Bibiano is almost guaranteed at least one hook in, remember the leg was in between his legs to begin with.
7) Bibiano's back sticks to Otsuka and he stays behind, following Otsuka as he tries to turn out. It's pretty much now a done deal that Bibiano will take the back.
9) Bibiano adjusts further to stay behind Otsuka. Moments later he is able to place his right hook to get the back fully.
Once again, the whole sequence takes place very quickly when seen in real time. Make sure you pay attention to where your head is when you are working on a single leg. One factor in this position if how well your opponent is able to keep balance on one leg. If you look at picture #2, Otsuka could have worked on the "switch" defense if he was able to keep his balance long enough to try.
Good training to you all, I hope you enjoyed this post and may it be helpful to all of you. You will be surprised at how often the back if offered from any clinching position like this. Stay healthy!