What Conor can do is ridicule Floyd in the ring, hurt his pride and the boxing fans' pride. If that happens and Conor loses, he still makes it look like a win, not only for himself, but also for MMA. It will make boxing look like a boring and dying sport.
It is true that Conor does not need to win the fight to hurt the boxers pride,he just need to stand and box till the 12th round and if he losses he just lost to one of the greatest defensive boxers of all time,that is a big win for Conor,the boxing community is laughing at this match and no one is giving any chance to Conor and everyone predicts a boring fight,i will support Conor to punch him once so that Floyd ass touches the ground,i just want that to happen for all the so called experts mocking MMA striking.
Well if Mayweather doesn't win convincingly, he can claim he is 40 years old and has been out of any training for 2 years, so he can claim that so save face too... at the end of the day all that matters is if you win or not, we all can make excuses.
If Mayweather was 28 years old like Conor, Mayweather would destroy Conor because Mayweather was KO'ing a lot of guys back in the day, he was a complete boxer.
The fight is interesting because of the age difference, because that gives Conor some chance, but nonetheless Mayweather has always taken care of himself, never did any drugs and never gets drunk, so he will be in top shape once again and will probably school Conor.