And now former world champion James Toney has named Chavez as the man who would have prevented Mayweather from retiring unbeaten. He responded when asked if Mayweather was boxing's greatest ever ...

BS: The best you ever sparred? Martin: James Toney. I got scared to death, but I got in the ring with James Toney. I was talking with Jackie Kallen. Right before signing with Don King, I was ...