Floyd Mayweather retires following easy victory over Andre Berto

If Saturday did indeed mark the end of an often brilliant, always controversial boxing career, Floyd Mayweather couldn't have asked for a more fitting performance.
The 38-year-old frustrated, taunted, and toyed with an overmatched Andre Berto to almost comical proportions, effortlessly matching Rocky Marciano's hallowed 49-0 record en route to a lopsided decision win, then confirmed his retirement in the ring.
"You've got to know when to hang it up," Mayweather said. "I think it's about time for