I doubt Mayweather would risk his undefeated record fighting Canelo no matter how much money is dangled in front of him. I’m guessing he’s probably feeling his age and reconsidering even the Logan fight. He was assured enough money to make it worth his while. Maybe he’s not as confident about beating Logan Paul as everyone else is that he will.
It will be a suicide, fighting an active monster after you retire.
Mayweather knows that even how much big money at stake chance of knocking him is very possible, Canelo is no longer a joke but a heavy puncher which can take you whatever hide and run you have in mind, even this special tactics is not safe for Canelo as if he got a slight open he will surely take you down. If he's going to stake he's name fighting Canelo or Pacquiao is best options to bring him another millions of dollars profits.