Really Ishinomori my dude... the black kid is named Sambo?
Oh man this is one of those old ooooooooooooooooooooooold ones huh
Yeahhh, when I saw that during my translating I was shaking my head.
The character himself actually ends up being pretty fun once we get properly introduced to him in a few chapters. It's really just the name and character design which are dubious. So dubious, in fact, that in the anime movie adaptation, they completely changed his name to Sonny and gave him a full re-design (pictured below) which admittedly is still laden with stereotypes, but isn't quite as blatantly offensive as the manga character's design is.