Transfer rumours: Messi, de Jong, Milinkovic-Savic, Firmino, Martial, Ndombele, Kounde, Paqueta

Lionel Messi's time at Barcelona is 'not over', Manchester United turn to Sergej Milinkovic-Savic as an alternative to Frenkie de Jong, Juventus make bid for Liverpool's Roberto Firmino, plus more.