This is legitimately the only possibility for Paul. He has to somehow clock Mayweather out of nowhere very early on. Either Mayweather drops, which is highly unlikely, or he is fuzzy from the shot and Paul has to quickly take advantage of a lapse in coverage. 1 in a million chance but I’d love to see the fallout. Mayweather will just play defense and let the younger inexperienced fighter in Pul throw haymakers until he tires himself out.
I’d recon Paul won’t even have the energy/power to throw a KO worthy punch after 2-3 rounds of trying to pop a defensive Mayweather, both due to how he will be tiring and how hard & accurate of a punch you’d have to throw on a seasoned fighter to knock him out.