Due to overwhelming demand, I'm sharing my list with everyone.
I think all of these will be available for the friendlies from July 11 through July 25 and thus will probably travel to America:
Goalkeepers: (3) Mignolet, Kelleher, Grabara
RB - Trent, Clyne, Hoever
CB - Virgil, Matip, Lovren, Gomez, Phillips, Van den Berg
LB - Robbo, Lewis, Larouci
Midfielders (9): Fabinho, Gini, Milner, Henderson, Ox, Grujic*, Lallana, Jones, Woodburn*
Forwards (6): Origi, Brewster, Shaquiri, Wilson, Glatzel, Duncan
* - if he's not transferred or loaned by then.
Returning by July 28 in Edinburgh vs. Napoli should be Allison, Keita, Mane, Salah, Firmino, with some of the kids dropping off.
There's also a few players who should go out on loan but might play especially in the first two matches as they build fitness - like Ejaria and Kent.