Real Madrid were reported to be leading the chase for the Brazilian, but they can only go as high as €400m.
That has left the door open for Jose Mourinho to join the chase and agree to meet an eye-watering buyout clause.
In other news, Paris Saint-Germain have made Chelsea midfielder N’Golo Kante their top target for the summer transfer window, reports Le 10 Sport .
The Ligue 1 leaders are eager to find a long-term replacement for Thiago Motta.
Kante is considered to be the ideal candidate for that role, with the France international set to be offered a route back to his homeland.