He said: “Obviously he is a world-class goalkeeper, so we are not going to say “let’s have a look”. He will play, of course.
“When Alisson is ready, he will be in our goal. We all need to help him so he can perform as good as possible.
“He is desperate to play. He could have joined us here in America but it made absolutely no sense.
“He had a long year and, as Brazil’s No 1, it was quite an intense year, so I sent him on holiday again. There will still be two games to play and West Ham is only the first game of the season, not the last one.
“I would say he plays in Dublin [against Napoli].”
Last seasons Champions League finalists lost their first pre-season game 3-1 to Borussia Dortmund, with Loris Karius making yet another gaffe during the game.
Despite the criticism the keeper is facing after the signing of Alisson, Mohamed Salah was quick to offer his sympathies to the German.