He'd go. Probably bollocks of course.
If rumours are to be believed the clause doesn't even apply to them. Would be hilarious if they came in and said: "Right, so we've heard about this clause in Ba's contract. Here's the 7 million required to get him in", only for us to turn around and reply: "the clause only applies to the top clubs. We'll be having another 35 million if you want to talk to him thank you very much. Now kindly piss off".