Sunderland's move for £25.7m new boy in danger after medical, Newcastle in for City's Gonzalez, Rodri pays emotional tribute after joining Barca... and Aston Villa agree Aaron Wan-Bissaka loan: WINDOW WATCH

The transfer window is now open until September 1 and it's sure to be a busy period as clubs look to make big signings ahead of the new season. Here are today's latest developments...