Idiot.
Maybe, just maybe they wanted to get him out because he wasn't able to read an offside trap/stay onside, lost his speed, ability to take on players and that his 24 mio euro wages was simply not showing on the pitch.
But no, that would be too easy an excuse and the PR agent of course doesn't want to admit that. Mane didn't do anything wrong in his head after all, nothing to look at here.
Mane was a massive flop and didn't deliver on the pitch. Mane is probably the most unintelligent player I've ever seen in terms of ability to read when to stay onside and not, even Filippo Inzaghi did it better.
But no itS becAusE he'S afRicAN.