Guardiola's work at Camp Nou between 2008 and 2012 remains appreciated and many supporters would like to see him come back but he says he will never return to manage the club again.
He was eventually offloaded to Manchester City arriving at the beginning of the clubs revolution.
But he was limited to just 17 appearances in all competitions last season. Do you believe that Barcelona could have done that with (Andres) Iniesta?
"But when you realise that he has problems with Africans, wherever he goes, I ask myself questions".More news: Democratic congressman to Trudeau: Stop 'feuding' with Trump over trade
"I am not the first to talk about these differences in treatment".
"Maybe us Africans aren't always treated the same by certain people".
"He insists he has no problems with black players, because he is too intelligent to be caught out", Toure had said.
Both City and Guardiola initially refused to comment, but the Catalan coach was asked about Toure's comments in an interview with Spanish show TV3 and said: 'It is a lie, he knows it.More news: Danny Kirwan, former Fleetwood Mac guitarist, dead at 68
When the subject was brought up, Guardiola was reserved in his assessment, telling This Is Premier League: "I would say we made the best year in the Premier League ever". He'll never admit it [not liking Africans]. (He had) 365 and 365 (days) to tell me (his feelings).
"When the day comes that he picks a team featuring five Africans - and not naturalised Africans - I promise I will send him a cake!"
We're not quite sure why Toure made those comments but given the reaction from his former teammates and Guardiola himself, it seems they made more out of spite than any sort of evidence.
The Toure-Guardiola feud rumbles on.More news: Vettel replaces Hamilton atop standings with Canada triumph
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