You can not use Manny/Shane as proof of how Manny/PBF will go
Who would?

Shane has no jab. Floyd has the best in the business. Shane lost his right hand by moving to his right. Floyd wont do that and has the best short right counter in boxing. A perfect southpaw counter. Shane stands straight up. Floyd fights like a Burley or Langford with that Philly shell. Shane cant fight on the back foot. Floyd if he needs to, is the best fighter on the planet off the back foot.

Floyd does everything great that Manny has issues with.