Toure left City at the end of the season following eight hugely successful years but he brew up a storm earlier this week by claiming in an interview with France Football that Guardiola does not like picking African players.
"You know, Guardiola can not be called a dog", he told Sport24.
'We were together two years and it is only now when he says it. "He never told me face to face", he added.
Toure has twice been sold by Guardiola to other clubs now.
That, of course, opens the door to a potential cross-city move for Toure, who could join United and work under Jose Mourinho. Do you really think he could've been like that with Andres Iniesta?
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'It got to the point I asked myself if it was because of my colour.
He said, "He knows that I'm not racist".
Toure made 17 appearances for City in all competitions last season before being released.
And following the conclusion of City's record breaking success in the league, Toure issued a forthright interview about Guardiola.
Guardiola also refuted suggestions he could be tempted to return to Barcelona as manager one day. It was a fantastic age where I was taking on the world and we took it on, with some incredible players, a young president, Joan Laporta, Txiki Begiristain and the best player in the world, Messi. It was a generation of brutal players and the best player in the world.
"President? No, I am a coach and I am good at what I do, you can't be everything", said Guardiola.