Fans are hoping for a vast improvement from their pre-season friendlies, which saw them finish last in the International Champions Cup.
"It is only normal that after winning so much a few negative results are surprising," said Marchisio.
"These things can happen, especially as in America we lost two games on penalties after playing well.
"This period is important to work hard and put petrol in the tank for the season ahead, so we'll just have to work even harder to start on the right foot."
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