Floyd Mayweather Jr. has been doing this all his life, since he was a scrawny kid seeking solace in the gym. The ring is his comfort zone, and he’ll enter it Saturday for the 43d time as a pro, certain as ever that when the night is through he’ll not only be a lot richer but still ...
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help