New signings Sadio Mane, Loris Karius, Joel Matip and Marko Grujic were among the players being put through their paces, with only the Euro 2016 and Copa America participants absent.
New signings Sadio Mane, Loris Karius, Joel Matip and Marko Grujic were among the players being put through their paces, with only the Euro 2016 and Copa America participants absent.