If he could knockout the softened-up-from-Bivol Canelo, it would indeed be his greatest win, given his age on top of it. Canelo took damage from Bivol and is softened up and ripe for the picking. Seeing as Canelo will always get the decision (unless blown out like by Bivol), GGG needs to knock Canelo back to the Clenbuterol Stand for some more tainted beef.