Salah and Mane have been named on the substitutes’ bench at the MetLife Stadium, but will be given some minutes in the second half.
Klopp told Liverpoolfc.com: “It’s good to have them back. We will see how long they play. We will decide at half-time if they will come on immediately.
“Mo for sure will not [come on at half-time], but maybe Sadio will. We will make a few changes and hopefully we can play good football again.”
Watch Liverpool's ICC clash with Manchester City live on LFCTV and LFCTV GO (excluding USA)>>
Meanwhile, Liverpool are without the services of Keita as a precaution due to a sore neck following their delayed journey to New Jersey from Charlotte on Tuesday.
Klopp explained: “He has a stiff neck. It was a comfortable plane when we flew, as you can imagine, but it wasn’t comfortable enough [for him] as he has a stiff neck and also slept a little bit like this [awkwardly]. Now he cannot move it properly. It’s not too cool, but it’s pretty much all.”