Why would he stop playing for his club all because we're negotiating with his club? That never made sense to me. I get when it's an unsettled player who's unhappy and trying to force a move but not somebody who loves playing for his hometown club and could be his final games there before he moves up.
Google the exchange rate, it's too much money for them to risk a player and São Paulo didn't have the best of league campaigns.
Anything they can get in is a huge sum, same goes for most brazillian clubs bar Flamengo and Palmeiras right now.