Lots of highly sceptical and dismissive comments here. To be honest, I don't really know or remember enough about what was happening in the England team when Sol was playing at that level. However, football undoubtedly has a racist element. Things are improving but, it follows logically that they were worse when Sol was playing than now. If such a prominent black player feels he was the victim of racial discrimination I'd hope his views were taken seriously and the source of a bit of soul-searching in certain circles.
But does he feel that was the case? Or does he feel that this idea will sell more books. To dismiss racism was rife in football would be foolish. But he played for England whilst 'a foreigner' picked the team so I would suggest. Don't pick him as he's black is a far fetched idea when it came to picking captain.