What if Floyd Mayweather lost?

C'mon it would do something to Floyd mentally. I get a sense, you think Floyd doesn't have his heart in the sport anymore. If Floyd loss to Guerrero I believe it would do something to Floyds confidence, even if he came back and beat Guerrero in a rematch. Being undefeated really means something to Floyd, it's his pride. Whether you think so or not, Floyd thinks he's the top dog, and if he takes a loss from Robert Guerrero, it would be humiliating to him. Winning is healthy for Floyd, and keeps him going hard in this sport.Now if some of the much bigger fighters beat him, like a Canelo or Trout, it wouldn't matter as much because of the huge advantages they have over him.