How many I want to know. Surely the lads at the euro's will still be on holiday, then you've got Suarez, Coates etc at the Olympics.
I would guess - Jones, Enrique, Maxi, Spearing, Wilson, Carragher, Adam (if fit?!), Suso (or is he with Spain under 21s?), Sterling, Doni, Shelvey, Coady, Skrtel, Eccleston (unless he has been released?), Flanagan, Bellamy (Olympics?), Gulasci, Wisdom, Robinson, Aquilani, Cole, Pacheco, Morgan, Nggo, Teixeira, Silva, Sama, Adorjan... and other academy lads.